Tuesday, February 1, 2011

Valentine's Day Chocolate Raspberry Mousse Cake



For days I have anxiously waited to take a bite of this triple layer cake and savour the wonderful marriage of raspberry and chocolate flavors. Why on earth did I wait days, you might wonder, when this cake can certainly be created and ready to eat in one afternoon? Well I had a series of mishaps that turned my yearning to eat cake into a frenzy of desire. It all started four days ago. I successfully baked the first layer of the cake and set it aside to cool.  An hour later I went to take a picture of the cooled cake and I bumped my camera and it went crashing to the floor. Nervously I looked through the viewfinder and saw a hazy purple image of my cake. Thinking I had to go buy a new camera, which I couldn't do for a few days, I froze the cake to finish it later.

Two days later my husband picked up the camera to see what was wrong, and it seemed to be working fine. Go figure. So I pulled the cake out of the freezer and started to make the chocolate mousse. I wanted to get pictures of each step of my recipe and I tried to hold my camera in one hand while using my other to fold whipped cream into melted chocolate. I struggled and took too long.  My mousse wasn't light and fluffy as it should be.  It had little bits of hardened chocolate throughout.  Certainly not the mousse I wanted to have in my cake. I poured the rejected mousse into a bowl, which my husband happily took off my hands. He was just as anxious to sink his teeth into the triple layer cake as I was, but was pacified for the time being.  I was able to make a perfect batch of chocolate mousse, layer it on top of the cake, take pictures, and get it in the refrigerator before heading off to the pool (had to get my exercise in knowing how many calories I would soon be consuming).  I rushed home, whipped up the raspberry mousse, and shot some photos just before the sun went down.  I've been trying to use natural light to take my pictures, so I decided to wait to shoot the final photographs until the next day although my mouth was sure watering by this point. Licking the spoon would have to suffice for a little while longer.
I woke up to sun shining brightly in my bedroom, hopped out of bed, and set out to take my pictures.  I got the cake from the refrigerator and was elated to see how wonderful it looked.  I washed my raspberries and adorned the cake with a heart. It took me a little time to set up my first shot then I grabbed my camera, turned it on, and wanted to cry. A big spot had appeared on the viewfinder which I tried to clean off. That didn't work and it wasn't on the lens either. It must be an internal problem and I couldn't find a solution. O.K., so I had, at that point, relinquished myself to the fact that I would need to purchase a new camera. I could use an upgrade anyway, but my desire to get pictures of this cake had now escalated into obsession. I didn't want to put the cake back in the refrigerator and run to the electronics store, so I aimed my broken camera at the beautiful cake trying to keep the big spot off to one side. I got a few descent shots and decided they would have to do.

My next step was to get a perfect slice of cake to photograph.  I thought this would be very simple.  Oh, wrong again. I got a sharp knife warm by running it under hot water and made two very clean cuts. I went to lift the cake out of the pan, but couldn't get under the cake. I had forgotten to turn the base of my springform pan upside down and the lip was a 1/4" deep. There was no way to lift a slice neatly out of the pan base keeping the remaining cake intact. As my impatience grew, I decided to forgo having a nice shot of the slice of cake in front of the whole cake.  A beautiful shot of a single slice would be fine.  Not worrying about how the whole cake would look, I heartlessly cut it in half and scooped out one side. I needed to be able to get a spatula under the other half of the cake in order to remove it cleanly from the pan's base. It took some effort, but I finally got a beautiful slice of cake for my photograph.  At this point though, I was so  frustrated that I grabbed a spoon and dug into the mutilated portion of the cake. Yes, I know it was still morning, but hey, the cake has eggs, dairy, and fruit in it.  Wouldn't that be considered an acceptable breakfast? Oh, as I put the first spoonful in my mouth, I let out a big sigh. My taste buds were so very happy. The waiting had come to an end. With each perfect bite I could taste the rich gooey flourless chocolate cake, the silky smooth chocolate mousse, and the lightly fruity white chocolate raspberry mousse. I stood in the middle of my kitchen eating joyously forgetting the stress of it all. When I had my fill and had licked my spoon clean, I grabbed my camera and got back to the work at hand.  I finally got a perfect shot of a slice of this decadent cake. One good picture was enough to make me happy.  What do you think, don't you just want to reach in your monitor and grab a slice for yourself?

I'm sure your experience making this dessert will go much more smoothly, at least I hope so.  I will admit, that even without all of my mishaps, this recipe is challenging. Each layer of this cake uses different techniques and requires time and effort. It is also not a budget recipe, by any means. You'll use almost 2 pounds of chocolate, 2 1/2 cups of heavy whipping cream, and 1 1/2 pounds of raspberries. However, I assure you it is worth every penny and every minute of time spent. Each layer of this cake is delicious all on it's own, so if you don't want to create the cake, just make one of the three recipes. Your mouth will definitely thank you!

I made my cake in a a heart shaped springform pan,but realize that most people don't own one. Just make your cake in a 9" round springform pan and arrange the raspberries on top of your cake in a heart if you are serving the cake on Valentine's Day. For other occasions, you can alternately top it with whipped cream or shaved chocolates for a beautiful effect. Also, I have a fondness for Peter's Burgundy Semi-Sweet Chocolate, which I use in all my chocolate recipes. If you prefer a more intense and bitter chocolate flavor swap bittersweet chocolate for the semi-sweet. Use chocolate that you enjoy eating out of hand, as you will definitely taste a poor chocolate in this recipe. 

Chocolate Raspberry Mousse Cake

Flourless Chocolate Cake Layer:
7 ounces semi-sweet chocolate, finely chopped
6 tablespoons unsalted butter
1 1/2 teaspoons pure vanilla extract
4 large eggs, separated
pinch of salt
1/3 cup light brown sugar

Preheat oven to 325 degrees Fahrenheit. Prepare a  9" springform pan or heart shaped springform pan by removing and turning the base upside down, setting it inside the ring, and clamping the pan. Generously grease the sides and base of the pan with butter.

Place chocolate and butter in a large heatproof bowl. Prepare a double boiler by filling a saucepan with 1" of water and setting it over low heat on the stove.  Set the chocolate filled bowl over the pan and allow the chocolate and butter to melt slowly, stirring often. Remove melted chocolate from stove top and allow to cool for about 5 minutes.  Stir in the vanilla and egg yolks.

Whisk egg whites and salt until foam forms.  Sprinkle in about 1/2 of the brown sugar and whisk until combined.  Add the rest of the brown sugar and whisk to soft peaks (pick up the whisk and the eggs should form a peak but flop over.) You can use a stand mixer or handheld mixer for this process if you desire, just don't over beat the eggs or they will become like Styrofoam.



Gently fold 1/3rd of the egg whites into the chocolate mixture. Fold in remaining egg whites being careful to not deflate the egg whites. Pour batter into the prepared pan.  Bake for 15-18 minutes. The cake will have risen, the edges will look set, and the center will spring back when touched. Set aside to cool for one hour. Once cooled, the cake will sink down in the center.

Chocolate Mousse Layer:
1 1/2 cups heavy whipping cream
12 ounces semi-sweet chocolate, finely chopped
3 tablespoons water
3 tablespoons sugar
3 egg yolks



Whisk whipping cream to soft peaks. Set aside. Melt the chocolate in a large bowl.  Click here for detailed instructions. Pour water and sugar in a small saucepan and bring it to a boil over medium heat. Stir until the sugar is dissolved creating a simple syrup. Whisk egg yolks in a medium bowl.  Continue to whisk while slowly adding a small amount of simple syrup.  Slowly drizzle in the remaining simple syrup continually whisking.  Combine eggs with melted chocolate, stirring until well incorporated.  Heat chocolate mixture in the microwave for 15 seconds then stir. Add one third of the whipped cream and whisk until well incorporated.  Gently fold in the remaining whipped cream until fluffy.  Pour mousse over the chocolate cake layer.  Spread evenly over top then refrigerate the cake for 30 minutes.

White Chocolate Raspberry Mousse:
1 tablespoon water
1 teaspoon unflavored gelatin
16 ounces frozen raspberries
1 tablespoon sugar
6 ounces white chocolate, finely chopped
1 cup heavy whipping cream

Garnish:
8 ounces fresh raspberries, rinsed and patted dry


Pour water into a small bowl.  Sprinkle gelatin over top and set aside for 5 minutes to bloom. Pour frozen raspberries into the bowl of a food processor and puree. Pour puree into a fine mesh strainer set over a bowl. Allow the raspberry juice to drip into the bowl. Press on the solids to get as much juice out of the puree as possible.  Discard solids. Pour raspberry juice into a small saucepan.  Add sugar. Bring to a boil over medium heat.  Continue to boil, stirring often until the juice reduces to 1/2 cup, about 5 minutes. Remove from heat and add the bloomed gelatin. Stir until the gelatin is dissolved. Put chopped white chocolate into a large bowl.  Pour hot juice over chocolate.  Allow to sit for 3 minutes.  Stir until melted and smooth. 

Whisk cream to soft peaks. Whisk 1/3rd of the whipped cream into the white chocolate mixture. Gently fold in the remaining whipped cream until light and fluffy. Pour over the chocolate mousse layer and spread evenly. Refrigerate for at least 3 hours.


Remove from refrigerator.  Run a thin knife or offset spatula around the edge of the pan.  Release the latch on the pan and carefully remove the metal ring from the cake. Set on a cake stand. (I usually put a dab of frosting or something on the plate to hold the cake in place.) Arrange raspberries in a heart on top of the cake just before serving.

Cake (without raspberry garnish) will keep in the refrigerator for up to 5 days. Keep in a cake dome to keep refrigerator smells out. Serves 8-12.


If you like this recipe, please share it with others by using the share buttons below. I really appreciate being Stumbled Upon and Pinned, and am always grateful to those of you that share my ideas on your website. I do request that you don't post my entire tutorial, but rather share a picture with a link. If you make this recipe, I'd love for you to send me a photo to beth@hungryhappenings.com so that I can share it in my Reader's Gallery. I link up to lots of websites that are listed hereThank you for visiting Hungry Happenings
-Beth

42 Leave a comment or question about this post.:

  1. OK Sis, that is what I want to Valentine's Day. Or any day.
    I think there is drool on my desk.

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  2. Even with all the mishaps it seems to have come out perfect! So glad your camera survived :)

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  3. what a class preparation you have delivered, Maam...Wanna see more

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  4. Yum! This looks delicious!

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  5. Hi Beth,
    This mousse is so beautiful!! I love raspberries and chocolate.
    Are you taking credit for this recipe or did you get inspiration from someone? It just seems so familiar to me!

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  6. Hi Madeleine,

    As with most recipe creations, I took inspiration from a few other recipes. Over the holidays I tried out a cake recipe from Cooks Illustrated and I liked certain elements but not others. I made a couple of changes to the bottom cake layer in their recipe including using semi-sweet chocolate instead of bittersweet because I enjoy a sweeter flavored cake. Then I topped that cake with a chocolate mousse recipe that I have been using for many years, that I liked so much better than their version. I learned to make this mousse in a cooking class about 10 years ago and am not sure of it's origin. The chef who taught the class was French, so I assume it is a pretty classic recipe. This mousse is amazing all on it's own. It is velvety smooth, incredibly rich, and full of chocolate flavor. I wanted to round out the recipe with raspberry flavor so I started with a raspberry ganache that I make to fill chocolates, and turned it into a mousse. The combination of all three layers is incredible. I've never made or eaten a cake that I like more. I wouldn't doubt that there are other versions of this recipe out there because the flavor combination is such a classic.

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  7. This cake was delicious! I love baking and am always first to put my hand up to make dessert for whatever the occasion. I made this cake was dessert at our father's day lunch yesterday. I can honestly say, it was the best dessert I have ever made!

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  8. Hi Anonymous, so happy to hear the this was the best dessert you ever made. I have to agree with your, it is my favorite dessert too!

    Beth @ Hungry Happenings

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  9. Wow looks super yummy...can I use frozen raspberries instead?

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  10. Hi Anonymous, yes you can use frozen raspberries to make the mousse. I would find something else to top the cake with if you don't have any fresh raspberries as thawed ones don't look quite as nice. You could pipe on some whipped cream or cut a heart stencil and dust some powdered sugar over the stencil. Even some heart shaped chocolates would be nice.

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  11. wow, beautiful! im sure raspberry & chocolate make for a killer combination... im gonna substitute wth strawberries :)

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  12. Just finished making the cake! So much work, I'm tired lol and my feet hurt haha. I haven't tried it yet but I can't wait I had some left over raspberries so i made a sauce from them, because I tried the white choc. raspberry mixture and they only one i could taste was the white choc. I don't think I made it correctly, I was running out of time. These are my favorite three flavors together. Glad you posted it I will try AGAIN andd not give up haha. Thanks for posting

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    1. Hi kjoy, It is definitely a time consuming cake to make, but wait until you taste it. It is worth the effort. I made this again for Christmas Eve and everyone raved about it. Oh, I think a raspberry sauce drizzled over the cake would be wonderful. I hope you enjoy it and take some pictures to send me to be displayed in the reader's gallery.

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  13. Stunning cake! It's beautiful and delicious looking.
    I love the combination of chocolate and rasberries.
    I've saving this recipe and planning to nake it.
    Thank you for sharing this!:)

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    1. Thanks Winnie. I absolutely love this cake and hope you do too.

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  14. Great pics. Looks perfect. Thanks for linking up at Bacon Time. Good luck!

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  15. Saw you over at Bacon Time's Crafting/Cooking from the heart contest. Your cake looks amazing and after all you had to go through, girl you have my vote!

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  16. And again - so cute!!! That's it, you just got yourself a new follow, miss!

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  17. Dear Beth,
    thank you for the fantastic recipe. We totally adore it. I made some changes in the chocolate mousse, because I didn't want to use raw eggs. I used only cream and chocolate. I believe it didn't change the flavour:)
    You can see my pictures on my blog:
    http://vkusnoteka.blogspot.com/2012/02/blog-post.html
    I have linked the recipe in Hungryhappenings.
    Thank you once again.

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    1. I'm so happy to see how beautiful your cake turned out. Thanks for sharing your pictures. I will add a picture of it to my Reader's Gallery. Your entire meal looks divine. Happy Valentine's Day!

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  18. I am attempting this cake today for a dinner party tomorrow night. I really hope it turns out. The pictures of each step are super helpful, Thanks!

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    1. Hope all goes well Shannon. I know you'll love the cake.

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    2. I have an 8 1/2 in and 9 1/2 in spring foam pan...which one should I use?

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    3. Hi Shannon, either of the pans will work fine. You will probably fill the smaller pan up completely and the layers will be thicker but it should still work.

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    4. I used the 9 1/2- I'm 2/3 of the way done the cake (I have a 5 month old so it's taking me longer than I originally thought). I think the bigger pan was definitely the way to go.

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  19. Do you know if strawberries instead of raspberries will work

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    1. Strawberries should work just fine. The color may not be quite as vibrant but the flavor should be nice.

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  20. Hi Beth, I am planning on making this today, but was wondering if I could use the chocolate mousse and the raspberry mousse as layers on shortbread cookies instead of the cake ? I just need something that will travel easy and stay firm. Not too sure if its a great idea, thoughts ? :)
    Dhana.

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    1. I think the mousse would taste great on a shortbread cookie. The only challenge may be in cutting through the cookies depending on how sturdy they are, but the mousse might just soften the cookies enough that they are easy to cut. I'm not sure, but think it would work well. Sorry it's a bit of a wishy washy answer. Let me know how it works out.

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  21. Hi Beth, I just made this cake last night for V-day and it was delicious! Thanks for the recipe :) I did have an issue with the simple syrup though - as soon as I would add it to the egg yolks and whisk, some would dissolve but most of the sugar in it would just solidify and become large, hard chunks. I ended up having to fish the chunks out and try again, but the same would happen. Is there a trick to this (I'm not a very experienced cook)? Also noticed that the chocolate mousse layer and the cake layer were the same colour whereas your mousse is a lot lighter in the pictures... not sure why mine turned out that way, but it was still very yummy!

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    1. I'm so glad your cake did turn out in the end. This recipe is pretty advanced, and you say you aren't a very experienced cook. Well, I'm impressed that you tackled it and I'm sure everyone you made it for appreciated your efforts. It is a stunning looking cake and tastes so good. As far as having issues with the sugar crystalizing when it hits the eggs, but my best guess is that you cooked the simple syrup too long so it became like hard candy. You just want to bring it to a boil and once the sugar is all dissolved take it off the heat. If it gets too hot it will go from a liquid to a gel to rock hard candy. The reason the chocolate cake and mousse layer can be different or more similar in color will have to do with the chocolate you used. Each has different properties and some are darker than others. I've seen lots of chocolate mousse desserts that are much darker than mine. I'm glad in the end you got it all to work and enjoyed the cake. Happy Valentine's Day.

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    2. Thanks, Beth! Yes it still turned out delicious, and you're right - I did heat the syrup for a while, it looked like a lot of liquid to me and for some reason I thought I needed to evaporate it off a bit, so that's where I went wrong. I used a 75% cocoa cooking chocolate, so it was quite dark/rich. I figured it would be different in colour due to the different chocolate, however I was expecting it to end up being lighter in colour than the cake base (as it looks in your pictures) but that was not the case. It still tasted great, I just thought the three colours was a neat look, but it still turned out better than I had anticipated, or expected for my first attempt. Thanks :)

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    3. Yep, you were making candy out of your simple syrup. The hot liquid helps to heat the eggs up to a safe temperature and will help sweeten the mousse. If you used chocolate with such high cocoa content, I'm sure your mousse was really dark in color and very rich in taste. The chocolate I use has a much lower cocoa content. If you make it again and want more variety in color, just use a chocolate with lower cocoa content for the mousse. I'm just happy in the end your cake was delicious.

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    4. I always make my simple syrup in the microwave. It heats up faster, so there's less evaporation. And I only end up having to clean a custard cup when it's done.

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    5. Hi Charles, that is a great idea. I have always made it on the stove, but next time, I'm going to do it in the microwave.

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  22. This looks like the dessert in the Truvia commercial, so I tried writing them for the recipe and this is the response I received from them:

    Thank you for your email. We regret to let you know that the only recipes
    that we have are on our website. What you see on our commercials, is that of
    our Advertising Agency hiring a 3rd party to make the delicious desserts in
    our commercials; therefore, we do not have the recipe. Please continue to
    visit our website as we update the recipes to suit the holidays as well.

    Thank you
    TruviaR Customer Service

    Isn't that unbelieveable? They are promoting their product with a fake dessert!!!!!

    Thank you for posting this recipe - I see there is no Truvia in it!

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    1. That is amazing. It's too bad they didn't have a recipe available. I've not ever used Truvia and haven't seen the commercial, but will try to keep a look out for it.

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  23. hi i was wonder .. can i use any bottom layer ? like instead of chocolate cake bottom can i make a sugar cookie crust bottom? I knoe it wont come out as thick but will it ruin the mousse or the consistency be different?

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    1. I think you could use a cookie crust. It will be harder to cut through than the cake, but I think it would taste pretty good.

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  24. Dear Beth,
    Before I start my comments on the cake I would like to say that this is the first time I have EVER left a comment on an internet blog. I normally just get what I need off a site and 'off I go...'. So for me to leave a comment is a HUGE deal ! The time you have taken on your entire site to add pictures and explain your recipes in such detail definitely deserves the time to leave a comment!
    My husband just completed his MBA (phew) and I wanted to surprise him with a nice cake. His favourite flavour hands down is raspberry! So... I had been searching a few weeks for a cake recipe that involved raspberries. I saw lots, but the raspberry layer was all too often something that looked suspiciously close to raspberry jam!
    When I found your recipe I was very happy! I am a fairly experienced cook/baker, but of course I was extra worried about how this cake would turn out... would it fall apart after I released the metal ring... how would it taste? etc.
    As a finishing touch, I saw your 'graduation cakes' and made one brownie in a small pyrex baking dish, added at the square chocolate 'cap' , made the tassel by hand out of white chocolate and honey and then placed the finished cap on top of the cake. It looked great and it was completely made out of organic ingredients. It is also great that this cake is 'gluten free!'
    My husband was out of town until yesterday morning so I made the cake on Thursday. We had a small barbecue last night with family and I brought the cake out with one sparkler after dinner. Everyone absolutely LOVED the cake! It was all GONE in no time! My husband also loved the cake, but his only 'complaint' (he is really good at constructive criticism) was that the chocolate 'over powered' the raspberry mousse flavour. I'm not sure what to do about this next time I make the cake. Half the chocolate in the middle section? Use another package of frozen raspberries in the top section? Thoughts? The white chocolate raspberry layer was by far the nicest flavour.
    In conclusion, I would like to thank you again for posting this lovely recipe on the internet for all to enjoy. VERY generous and gracious of you! Thanks again! Angie

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    1. Hi Angie,

      Thanks for taking the time to leave such a nice comment. I am so happy your family enjoyed the cake. This recipe does make a really rich chocolate cake that has a hint of raspberry instead of the other way around. If you would like a more distinct raspberry flavor there are a few things you could do next time; make a raspberry sauce to drizzle over the cake, double the ingredients for the raspberry mousse layer and skip the chocolate mousse layer, or double just the raspberries and cook them down to a thick syrup to intensify the flavor. All three of these will ramp of the raspberry flavor and I'm sure will taste fantastic.

      I love that you also made a graduation cap cake. I love that you used the idea but created one large cake out of it. The flourless chocolate cake is a fantastic gluten free dessert and by using honey in your modeling chocolate, you made it a bit healthier too.

      If you took any pictures, I'd really enjoy seeing then and sharing them in my reader's gallery.

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