Go Back
Heavenly Raspberry Chocolate Mousse Cake with fresh raspberries and chocolate
Print Recipe

Heavenly Raspberry Chocolate Mousse Cake

A decadent dessert that combines rich chocolate with the bright acidity of fresh raspberries in a stunning cake.
Prep Time30 minutes
Cook Time30 minutes
Total Time5 hours 30 minutes
Course: Cake, Dessert
Cuisine: American
Keyword: Baking Recipe, Celebration Cake, Chocolate Cake, Decadent Dessert, Raspberry Mousse
Servings: 8 slices
Calories: 300kcal

Ingredients

For the cake

  • 1 cup all-purpose flour Soft and fine, providing a perfect base for the cake.
  • 1 cup granulated sugar Sweetness that balances the bitterness of cocoa.
  • 1/2 cup unsweetened cocoa powder Rich, dark, and chocolatey, offering depth to the cake.
  • 1 teaspoon baking powder Aiding in the rise of the cake.
  • 1/2 teaspoon baking soda Ensuring a fluffy texture.
  • 1/4 teaspoon salt Enhancing all the flavors.
  • 1/2 cup vegetable oil Keeping the cake moist and tender.
  • 2 large eggs Contributing to the structure and richness.
  • 1 cup buttermilk Adding flavor and helping the cake rise.
  • 1 teaspoon vanilla extract A fragrant addition enhancing the overall taste.

For the raspberry mousse

  • 1 cup fresh or frozen raspberries Juicy little bursts of flavor that shine through the mousse.
  • 1/4 cup granulated sugar Sweetening the raspberry puree.
  • 1 teaspoon lemon juice Brightening the raspberry flavor.
  • 1 cup heavy cream Whipped to airy perfection for a light texture.
  • 1 tablespoon powdered sugar Sweetening the whipped cream without heaviness.
  • 1 tablespoon unflavored gelatin Providing structure to the mousse.
  • 2 tablespoons water Hydrating the gelatin.

For the chocolate ganache

  • 1 cup heavy cream Creamy and luscious, making the ganache smooth.
  • 8 oz semisweet chocolate, chopped Decadent chocolate that brings richness and indulgence.
  • 1 teaspoon vanilla extract Complementing the chocolate flavor.

Instructions

Preparation

  • Preheat your oven to 350°F (175°C) and grease and flour an 8-inch round cake pan.
  • In a medium bowl, whisk together the all-purpose flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt until well combined.
  • In another bowl, mix together the vegetable oil, eggs, buttermilk, and vanilla extract until combined.
  • Gradually add the wet ingredients to the dry ingredients, stirring gently until just combined.

Baking

  • Pour the batter into the prepared pan and bake for 25-30 minutes. Test for doneness with a toothpick.
  • Allow the cake to cool completely in the pan.

Raspberry Mousse Preparation

  • In a saucepan, combine the fresh or frozen raspberries, sugar, and lemon juice. Cook until the raspberries break down into a thick puree.
  • Strain the mixture and let it cool.
  • Sprinkle gelatin over 2 tablespoons of water, let sit for 5 minutes, then microwave to dissolve and stir into the cooled raspberry puree.
  • In a large bowl, whip the heavy cream and powdered sugar until stiff peaks form, then fold in the raspberry mixture.

Chocolate Ganache Preparation

  • In a saucepan, heat the heavy cream until it simmers, remove from heat, and stir in the chopped semisweet chocolate until smooth. Add vanilla extract.

Assembly

  • Place the cooled chocolate cake on a serving plate and spread raspberry mousse over the top.
  • Refrigerate for at least 2 hours to set the mousse.
  • Pour the chocolate ganache over the mousse layer and refrigerate for an additional hour before serving.

Notes

For a vegetarian-friendly option, use agar-agar as a gelatin substitute. Add orange zest for a hint of citrus.