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Decadent Chocolate Raspberry Mousse Cake topped with fresh raspberries.

Chocolate Raspberry Mousse Cake

A decadent dessert featuring moist chocolate cake layered with creamy raspberry mousse and topped with rich ganache.
Prep Time 30 minutes
Cook Time 25 minutes
Total Time 2 hours 45 minutes
Course Cake, Dessert
Cuisine French
Servings 8 servings
Calories 350 kcal

Ingredients
  

For the Cake

  • 1 cup flour All-purpose flour for a tender crumb.
  • 1/2 cup cocoa powder Unsweetened cocoa for rich chocolate flavor.
  • 1 tsp baking powder For lightness.
  • 1/2 tsp baking soda Enhances texture.
  • 1/2 cup sugar To sweeten the layers.
  • 1/2 cup milk Adds creaminess.
  • 1/4 cup melted butter Enriches mouthfeel.
  • 2 pieces eggs Binds the ingredients.
  • 1 tsp vanilla extract Brings warmth to the profile.

For the Mousse

  • 1 cup fresh raspberries Bursting with tartness.
  • 1/4 cup sugar To complement the raspberry zing.
  • 1 tsp lemon juice Brightens flavors.
  • 1 tsp gelatin Stabilizes the mousse.
  • 2 tbsp water To dissolve gelatin.
  • 1 cup heavy cream Ensures a silky texture.

For the Ganache

  • 1/4 cup heavy cream Adds gloss and richness.
  • 1/2 cup dark chocolate chips Enhances chocolate depth.

Instructions
 

Bake the Cake

  • Preheat your oven to 350°F (175°C).
  • In a large bowl, mix flour, cocoa powder, baking powder, baking soda, and sugar until combined.
  • Add milk, melted butter, eggs, and vanilla extract, whisking until smooth.
  • Pour the batter into a greased cake pan and bake for 20-25 minutes until a toothpick comes out clean.

Make the Mousse

  • Blend fresh raspberries, sugar, and lemon juice until silky, then strain to remove seeds.
  • Dissolve gelatin in warm water and mix it with the raspberry purée.
  • Whip heavy cream to soft peaks and gently fold into the raspberry mixture.

Assemble

  • Pour the raspberry mousse evenly over the cooled cake and chill for at least 2 hours.

Top with Ganache

  • Heat 1/4 cup of heavy cream until steaming, then pour over dark chocolate chips and stir until smooth.
  • Pour ganache over the chilled mousse and allow it to cascade down the sides.

Chill & Serve

  • chill the cake for an additional hour after adding ganache, then slice and serve.

Notes

For best results, measure ingredients accurately and keep butter and eggs at room temperature. Whip cream cold for airy peaks and do not rush the chilling process.
Keyword Celebration Cake, chocolate cake, Dessert Recipe, Indulgent Cake, Raspberry Mousse