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Triple Chocolate Mousse Cake

A deliciously layered dessert combining dark, milk, and white chocolate mousses with a soft chocolate base, perfect for any celebration or as a delightful treat.
Prep Time 30 minutes
Cook Time 30 minutes
Total Time 2 hours
Course Dessert
Cuisine American
Servings 12 slices
Calories 520 kcal

Ingredients
  

For the Cake Base

  • 1 cup flour All-purpose flour
  • 1/2 cup cocoa powder
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar Packed
  • 2 large eggs
  • 1/2 cup vegetable oil
  • 1/2 cup buttermilk
  • 1/2 cup hot water or hot coffee Use hot coffee for a richer flavor

For the Mousses

  • 100 g dark chocolate Melted
  • 100 g milk chocolate Melted
  • 100 g white chocolate Melted
  • 1 cup cream Divided for mousses

For Decoration

  • Grated chocolate, curls, or cocoa powder For topping

Instructions
 

Preparation of Cake Base

  • Preheat the oven to 350°F (175°C). Grease an 8-inch (20 cm) round cake pan and line it with parchment paper.
  • Sift together the flour, cocoa powder, baking powder, and baking soda.
  • In a separate bowl, beat the eggs, granulated sugar, and brown sugar until smooth.
  • Add the vegetable oil and buttermilk and mix until combined.
  • Gradually add the dry ingredients, then slowly add hot water or coffee to achieve a smooth consistency.
  • Pour the batter into the prepared pan and bake for 25-30 minutes or until a toothpick inserted comes out clean.
  • Let cool completely.

Preparation of Chocolate Mousses

  • For each mousse (dark, milk, white), melt the chocolate slowly using a microwave or double boiler.
  • Whip 1/2 cup of cream until soft peaks form.
  • Fold the whipped cream into the melted chocolate until smooth and set aside.

Assembling the Cake

  • Slice the cooled cake horizontally into 2-3 layers, if desired.
  • Spread dark chocolate mousse, then milk chocolate mousse, and finally white chocolate mousse between the layers.
  • Chill in the refrigerator for at least 2-3 hours, preferably overnight.

Decoration

  • Decorate with chocolate shavings, curls, or cocoa powder.

Notes

Slice with a hot, clean knife for neat edges. Serve chilled or just lightly removed from the fridge for 10–15 minutes to soften. You can also add a thin layer of raspberry jam between layers for a fruity contrast.
Keyword Celebration Cake, Chocolate Dessert, Chocolate Mousse Cake, layered cake, Mousse