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Dark Chocolate Raspberry Mousse Cake

Dark Chocolate Raspberry Mousse Cake

A decadent dessert combining rich dark chocolate cake layers with airy raspberry mousse, topped with silky chocolate ganache and fresh raspberries.
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Course: Dessert
Cuisine: American
Keyword: Dark Chocolate Raspberry Mousse Cake
Prep Time: 45 minutes
Cook Time: 30 minutes
Chill Time:: 4 hours
Total Time: 5 hours 15 minutes
Calories: 420kcal

Equipment

  • 9-inch round cake pans
  • Mixing bowls
  • Electric mixer or hand whisk
  • Saucepan
  • Spatula
  • Cake stand or serving plate
  • Measuring cups and spoons

Ingredients

Raspberry Mousse

  • 3 teaspoons unflavored gelatin
  • ½ cup water divided
  • 12 ounces fresh or frozen raspberries
  • cup sugar
  • cups heavy cream

Chocolate Cake

  • 10 ounces good quality dark chocolate melted
  • cups all-purpose flour
  • 2 cups sugar
  • 2 teaspoons baking powder
  • ½ teaspoon salt
  • 2 eggs
  • ½ cup melted butter
  • ½ cup milk
  • ¾ cup boiling water
  • 2 teaspoons pure vanilla extract

Chocolate Ganache

  • 10 ounces dark chocolate
  • cups heavy cream
  • Fresh raspberries for garnish

Instructions

Step 1: Prepare the Raspberry Mousse

  • Sprinkle gelatin over ¼ cup of cold water and let it bloom for 5 minutes.
  • In a saucepan, combine raspberries and sugar. Cook over medium heat until raspberries break down.
  • Remove from heat, add bloomed gelatin, and stir until dissolved. Let cool slightly.
  • Whip the heavy cream to soft peaks and fold it gently into the cooled raspberry mixture. Set aside in the fridge.

Step 2: Make the Chocolate Cake

  • Preheat oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  • In a bowl, mix flour, sugar, baking powder, and salt.
  • In another bowl, whisk together eggs, melted butter, milk, and vanilla extract.
  • Slowly mix wet ingredients into dry, then fold in melted chocolate. Add boiling water carefully to make a smooth batter.
  • Divide batter into the prepared pans and bake for 25–30 minutes, or until a toothpick comes out clean.
  • Let cakes cool completely on a wire rack.

Step 3: Assemble the Cake

  • Place one chocolate cake layer on a serving plate. Spread half of the raspberry mousse evenly on top.
  • Add the second cake layer and cover with remaining mousse. Smooth the sides.
  • Chill in the refrigerator for at least 2 hours to set.

Step 4: Prepare Chocolate Ganache

  • Heat heavy cream in a saucepan until it just begins to simmer.
  • Pour over chopped dark chocolate. Let sit for 2 minutes, then stir until smooth.
  • Pour ganache over the chilled cake and spread evenly. Decorate with fresh raspberries.

Notes

1. Make sure the mousse is fully set before adding ganache to prevent mixing.
2. Use a serrated knife for clean cake slices.
3. Always fold whipped cream gently to maintain airy texture.

Nutrition

Serving: 1Slice | Calories: 420kcal | Carbohydrates: 45g | Protein: 6g | Fat: 28g | Saturated Fat: 17g | Fiber: 3g | Sugar: 32g