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Chocolate Raspberry Mousse Cake

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  • Author: clara
  • Prep Time: 40 minutes
  • Cook Time: 30 minutes
  • Total Time: 4 hours (including chilling time)
  • Yield: 10 servings 1x
  • Category: Dessert
  • Method: Chilled
  • Cuisine: French
  • Diet: Vegetarian

Description

A decadent layered dessert combining rich chocolate cake, luscious raspberry mousse, and a smooth chocolate ganache topping—perfect for special occasions.


Ingredients

Units Scale
  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup buttermilk
  • 1/2 cup hot water
  • 1 1/2 cups fresh raspberries
  • 2 tablespoons sugar (for raspberry puree)
  • 1 tablespoon lemon juice
  • 1 tablespoon unflavored gelatin
  • 2 tablespoons cold water
  • 1 1/2 cups heavy cream
  • 2 tablespoons powdered sugar
  • 1/2 cup heavy cream (for ganache)
  • 4 oz semi-sweet chocolate, chopped (for ganache)

Instructions

  1. Preheat oven to 350°F (175°C). Grease and line a 9-inch round cake pan.
  2. In a bowl, whisk together flour, cocoa powder, baking powder, baking soda, and salt.
  3. In a large bowl, beat butter and sugar until light and fluffy. Add eggs one at a time, then vanilla.
  4. Mix in the flour mixture alternately with buttermilk. Stir in hot water until smooth.
  5. Pour batter into the prepared pan and bake for 25–30 minutes. Let cool completely.
  6. For raspberry mousse: puree raspberries with 2 tablespoons sugar and lemon juice. Strain to remove seeds.
  7. Sprinkle gelatin over cold water and let stand 5 minutes. Microwave for 10 seconds to dissolve.
  8. Stir gelatin into raspberry puree.
  9. Whip 1 1/2 cups heavy cream with powdered sugar until soft peaks form. Fold into raspberry mixture. Chill slightly.
  10. Place cooled cake in a springform pan. Spread mousse over cake and refrigerate 2–3 hours.
  11. For ganache: heat 1/2 cup cream until just boiling, pour over chopped chocolate. Let sit 2 minutes, then stir until smooth.
  12. Pour ganache over mousse layer and spread evenly. Chill until set, about 1 hour.
  13. Remove sides of pan before serving. Garnish with fresh raspberries if desired.

Notes

  • Use frozen raspberries if fresh aren’t available.
  • Ensure gelatin is fully dissolved to prevent lumps in the mousse.
  • Cake can be made a day ahead and stored in the refrigerator.

Nutrition

  • Serving Size: 1 slice
  • Calories: 420
  • Sugar: 28g
  • Sodium: 140mg
  • Fat: 28g
  • Saturated Fat: 17g
  • Unsaturated Fat: 9g
  • Trans Fat: 0g
  • Carbohydrates: 42g
  • Fiber: 3g
  • Protein: 5g
  • Cholesterol: 95mg