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–+ servings
A cake on a plate.

Triple Chocolate Mousse Cake Recipe

Theresa
Decadent Triple Chocolate Mousse Cake recipe, featuring rich layers of dark and white chocolate mousse atop a moist chocolate cake base.
Prep Time 15 minutes
Cook Time 30 minutes
Additional Time 2 hours
Total Time 2 hours 45 minutes
Course Cakes
Cuisine American
Servings 8
Calories 1330 kcal

Ingredients
  

  • 1 ½ cups all-purpose flour
  • 1 ½ teaspoons baking powder
  • 1 teaspoon baking soda
  • ¾ cup unsweetened cocoa powder
  • 2 cups granulated sugar
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup whole milk
  • ½ cup vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup hot water

For the Chocolate Fudge:

  • 1 ½ cups dark chocolate chips
  • 1 cup heavy cream
  • 2 tablespoons unsalted butter
  • 2 tablespoons corn syrup

For the Chocolate Mousse:

  • 6 ounces dark chocolate chopped
  • 1 ½ cups heavy cream
  • 1 teaspoon vanilla extract

For the White Chocolate Mousse:

  • 6 ounces white chocolate chopped
  • 1 ½ cups heavy cream
  • 1 teaspoon vanilla extract
  • 1 Top with a layer of Chocolate Fudge

Instructions
 

  • Preheat oven: First, preheat your oven to 350 degrees F and prepare three round cake pans with grease and flour. 
  • Mix dry ingredients: Then, combine flour, cocoa powder, baking soda, baking powder, granulated sugar, and salt in a large mixing bowl or the bowl of a stand mixer. 
  • Add the egg mixture: Next, add eggs, milk, vanilla, and oil to the dry ingredients and mix well.
  • Add water: After, slowly pour in the hot water while mixing on low speed. Keep increasing speed to medium until the chocolate mixture is smooth. 
  • Divide and bake: Now, divide the cake batter into each prepared pan and bake for 25 to 30 minutes or until it passes the toothpick test. Let the cakes cool completely. 
  • Make the chocolate fudge: While you wait, heat chocolate chips, butter, corn syrup, and heavy cream in a saucepan over low heat, stirring until smooth. Let melted chocolate mixture cool for 15 minutes. 
  • Make the chocolate mousse: As that cools, melt dark chocolate in a heat-proof bowl over simmering water, or use a double boiler. Let it cool while you whip the vanilla and cream until soft peaks form. Then, gently fold the melted chocolate mixture into the whipped cream with a wooden spoon. 
  • Make the white chocolate mousse layer: For the white chocolate mixture, melt the white chocolate the same way and let it cool while you whip the heavy cream and vanilla until soft peaks form. Then, fold remaining whipped cream into the melted white chocolate gently. 
  • Assemble the choc mousse cake: To assemble, put one layer of chocolate cake on a serving plate as a chocolate cake base and spread half of the chocolate fudge on top. Add a chocolate mousse layer, then another layer of chocolate cake middle layer before topping with remaining chocolate fudge. Spread a layer of white chocolate layer on next and finish with the last cake layer. Top with a layer of Chocolate fudge.
  • Let it chill: Now, chill the triple chocolate cake in the fridge for at least two hours. 
  • Serve: Finally, serve cooled cake with chocolate curls, shavings, or other chocolate decorations on top, if desired. 
    Trifle cake chocolate mousse chocolate lovers dream.

Notes

Recipe tips:

To pass the toothpick test, a toothpick inserted into the center of the cake will come out clean or with a few crumbs.
You can use a springform pan or cake ring instead of a regular cake pan for this recipe too. 
Instead of chopped dark and white chocolate, you can use dark and white chocolate chips.
Alternatively, you could use parchment paper in your cake pans instead of grease and flour. 
If you do not use all the chocolate mousse, use what is left to coat the whole cake. 
If you want your mousse layers to be thicker and have extra frosting, double the chocolate mousse recipe.
To thin out the chocolate layers, you can use vegetable oil or cocoa butter. 
Looking for more chocolate recipes or chocolate desserts? There are new ones every day on our food blog. 

Nutrition

Serving: 1gCalories: 1330kcalCarbohydrates: 128gProtein: 14gFat: 86gSaturated Fat: 45gPolyunsaturated Fat: 35gTrans Fat: 2gCholesterol: 201mgSodium: 615mgFiber: 6gSugar: 99g
Keyword baking with chocolate, chocolate dessert, chocolate indulgence, chocolate lover's dream, decadent mousse cake, delicious dessert recipe, easy chocolate mousse recipe, homemade chocolate cake, rich chocolate cake
Tried this recipe?Let us know how it was!