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Chocolate Mousse Cake with Truffles

A Chocolate Lovers utopia. This chocolate mousse cake with truffles on top is just what the doctor ordered. It’s perfect for a decadent dessert!

A Chocolate Lovers utopia. This chocolate mousse cake with truffles on top is just what the doctor ordered. It's perfect for a decadent dessert!

A Chocolate Lovers utopia. This chocolate mousse cake with truffles on top is just what the doctor ordered. It's perfect for a decadent dessert!

Three Layer Chocolate Mousse Cake with Chocolate Raspberry Truffles

Oh Wow! This is a chocolate lover’s dream cake!

Three layers of Chocolate Cake. Chocolate Mousse Frosting. Chocolate Raspberry Truffles

This chocolate mousse cake was just what the doctor ordered for your tweet tooth. It’s a great cake for a special birthday celebration. My husband even went so far to say he would have liked this cake for his groom’s cake.

A perfect cake -Combed chocolate frosting with macadamia nuts around the perimeter and topped with truffles.

Let me take a minute to harness my inner Jack Nicholson for a second … ahem… You can’t handle the Chocolate. Lol… okay, I’m sorry for that…  But in all honesty, see the rays of light in the photo above? God has even endorsed this cake. I loved the light so much that I didn’t want to edit them out. It was the perfect effect.

Triple layers of chocolate cake, chocolate mousse frosting, and chocolate truffles are perfect for a fancy birthday celebration.

Yes, this cake was THAT good!

If you have made your cake and truffles, you can make your frosting. If you’re ambitious and have the time, you can make this cake in one day. It’s not difficult. The truffles can sit overnight and the iced cake can sit over night and all you have to do is finish decorating it the next day.

This Chocolate Mousse Frosting is light and fluffy, but is best when served on the same day.

Since the frosting is a mousse, it’s best eaten the day that it’s served. However, my husband had no problems enjoying this cake two days later. It was still amazing!

This Chocolate Mousse Cake is part of a series. Find the Chocolate Cake Recipe and Torting Tutorial HERE. Find the recipe for Chocolate Raspberry Truffles HERE.

Chocolate Mouse Cake Collage

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Chocolate Mousse Cake with Truffles

A decadent Chocolate Truffle Mousse Cake that is worthy of a formal party. Three layer cake with truffles and chocolate mousse frosting.

This cake is a chocolate lover's utopia! A rich chocolate cake with a mousse frosting, topped with chocolate truffles.

Prep Time 1 hour
Total Time 1 hour


  • 2 cups heavy cream
  • 3/4 oz unsweetened cocoa powder
  • 13 oz bittersweet chocolate
  • 1 sticks (1/2 cup) butter, cut into small cubes
  • 1 teaspoons vanilla
  • pinch of salt
  • 7 egg whites
  • 1/2 cup sugar
  • 1 1/2 - 2 cups chopped macadamia nuts
  • Chocolate Cake
  • Truffles


    1. Prepare a large bowl for an ice bath. Be sure that the medium bowl will fit inside.
    2. In a medium pot, combine the cream and cocoa and heat until a full boil forms. Remove from heat and pour over chocolate pieces and butter. Wait five minutes for the milk to melt the chocolate then slowly whisk until the chocolate and butter are completely melted, blended, and smooth.
    3. Add in the vanilla and salt, then place the bowl into the prepared ice bath and whisk until the chocolate has come to room temperature. Lumps will form if you stop mixing. Once cool, remove from the ice bath and set aside.
    4. Whip the egg whites with a whisk attachment in a mixer. Once the whites are foamy, slowly add in the sugar and continue whipping until stiff peaks form.
    5. Fold in a third of the chocolate into the meringue then gradually add in all of the chocolate and fold until the chocolate and meringue are incorporated.
    6. Reserve a cup of the frosting.

To assemble the cake

    1. Place the top layer of the cake upside down into a springform pan. Add ⅓ of the chocolate mousse frosting allowing it to run over the sides. Place the second slice of cake on top along with more frosting and finally top with the bottom slice of the cake with the bottom up (smooth side up). Cover the cake and fill in the sides with the frosting. Allow to chill overnight.
    2. Slide a warm, dry knife along the edge of the springform pan and slowly release the clasp. Remove from the pan and place on a serving dish.
    3. If you can safely remove the bottom of the pan, do so. I used a Large Cake Lifter to move my cake off the springform bottom and onto the cake platter.
    4. Use the extra frosting to touch up any spots and add it to the top of the cake. Use a serrated knife to make groves in the top of the cake or you can use an inexpensive tool like this Decorating Comb.
    5. Take the chopped macadamia nuts and gently press them into the sides of the cake. A lot will fall off onto the platter. Just keep going around until the cake sides are coated.
    6. Finally, top with the truffles and place in the fridge for an hour before serving. I found this cake was best served cold.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 623Total Fat: 56gSaturated Fat: 23gTrans Fat: 0gUnsaturated Fat: 30gCholesterol: 45mgSodium: 63mgCarbohydrates: 24gFiber: 8gSugar: 11gProtein: 11g

Nutrition information isn’t always accurate.


Saturday 29th of June 2019

Are the dry ingredients for this cake measured by weight, ot by volume? Thanks!

Karyn Granrud

Wednesday 17th of July 2019

well, both I guess. For the mousse frosting recipe - the butter and sugar are by volume in cups and the cocoa and chocolate are by weight in ounces. For the actual cake recipe the flour is by weight in ounces.

Create & Share DIY and Recipe Party {45} - A Simple Pantry

Tuesday 3rd of March 2015

[…] and Pomegranate Margarita || Black, White, and Gold Office Makeover || Roasted Root Vegetables || Chocolate Mousse Cake with Truffles || Air Freshening Tabs || Chocolate Coconut Energy […]

Kyla @HouseOfHipsters

Friday 27th of February 2015

Ok, so this looks almost too pretty to eat. Although, if a slice happened to be put in front of me, I'd totally devour it! Would love to have you share it on the Found & Foraged linky party held every Saturday night at 8PM CST on Hope to see you there!


Wednesday 25th of February 2015

I can't even begin to tell you how good that looks to me right now. I haven't had chocolate in a good week and have been begging someone to bake me a cake. I may have to just do it myself after seeing this! ha!

Karyn Granrud

Sunday 1st of March 2015

This was a delicious chocolate cake. I hope you enjoyed it!

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Thursday 1st of May 2014

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