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Chocolate Mousse Cake Recipe (3 Layers of Bliss)

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  • Author: Molly Yeh
  • Prep Time: 45 minutes
  • Cook Time: 30 minutes
  • Total Time: 6 hours (including chilling time)
  • Yield: 1 9-inch cake (10-12 servings) 1x
  • Category: Dessert
  • Method: No Bake (mousse), Baked (cake)
  • Cuisine: French
  • Diet: Vegetarian

Description

A decadent three-layer chocolate mousse cake with a rich chocolate base, creamy milk chocolate mousse, and a light white chocolate mousse topping. Perfect for special occasions or indulgent dessert cravings.


Ingredients

Units Scale
  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1 tsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 3/4 cup granulated sugar
  • 1/2 cup unsalted butter, softened
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/2 cup buttermilk
  • 1/2 cup hot water
  • 1 1/2 cups heavy cream (for milk chocolate mousse)
  • 8 oz milk chocolate, chopped
  • 1 1/2 cups heavy cream (for white chocolate mousse)
  • 8 oz white chocolate, chopped
  • 1 tbsp powdered gelatin (divided)
  • 6 tbsp cold water (divided)

Instructions

  1. Preheat the oven to 350°F (175°C). Grease and line the bottom of a 9-inch springform pan.
  2. In a large bowl, whisk together the flour, cocoa powder, baking powder, baking soda, and salt.
  3. In another bowl, cream the butter and sugar until light and fluffy. Beat in eggs one at a time, then stir in vanilla.
  4. Alternate adding the dry ingredients and buttermilk to the butter mixture, beginning and ending with dry ingredients. Stir in hot water until smooth.
  5. Pour the batter into the prepared pan and bake for 25-30 minutes. Cool completely.
  6. For milk chocolate mousse, bloom 1/2 tbsp gelatin in 3 tbsp cold water for 5 minutes. Melt milk chocolate and stir in bloomed gelatin until smooth. Whip 1 1/2 cups cream to soft peaks and fold into the chocolate mixture. Spread over cooled cake layer and chill for 1 hour.
  7. For white chocolate mousse, repeat the gelatin process with the remaining gelatin and water. Melt white chocolate, add gelatin, and fold in whipped cream. Spread over the milk chocolate layer and chill for 4 hours or until fully set.
  8. Remove cake from pan, smooth sides if desired, and serve chilled.

Notes

  • You can make the cake layer a day ahead for convenience.
  • Use high-quality chocolate for the best flavor.
  • Chill between each layer to ensure clean, defined layers.

Nutrition

  • Serving Size: 1 slice
  • Calories: 460
  • Sugar: 28g
  • Sodium: 180mg
  • Fat: 32g
  • Saturated Fat: 19g
  • Unsaturated Fat: 11g
  • Trans Fat: 0g
  • Carbohydrates: 39g
  • Fiber: 2g
  • Protein: 6g
  • Cholesterol: 95mg