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Triple Chocolate Mousse Cake

Indulge in heavenly layers of dark, milk, and white chocolate mousse with this simple yet luxurious cake that’s perfect for any celebration.
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Prep Time 30 minutes
Cook Time 1 hour
Total Time 5 hours
Servings: 12 servings
Course: Cake, Dessert
Cuisine: American, French
Calories: 425
Ingredients Method Notes

Ingredients
  

For the Chocolate Cake Base
  • 1/3 cup all-purpose flour Sifted; use a high-quality brand like King Arthur Flour for best results.
  • 1/4 cup unsweetened cocoa powder Use premium cocoa like Valrhona or Ghirardelli for enhanced flavor.
  • 1/4 tsp baking powder To add a bit of leavening.
  • 1/8 tsp salt Enhances the chocolate flavor.
  • 2 large eggs Room temperature, ideally organic for richer taste.
  • 1/4 cup granulated sugar Use fine sugar for optimal blending.
  • 2 tbsp milk Whole milk recommended for a richer cake.
  • 2 tbsp vegetable oil Can substitute with melted butter for added flavor.
  • 1/2 tsp vanilla extract Pure vanilla extract elevates the experience.
For the Mousse Layers
  • 100 g dark chocolate (60–70 percent), finely chopped A good quality brand will amplify the taste.
  • 1/2 cup heavy cream For the dark chocolate mousse.
  • 1/4 cup milk Whole milk recommended.
  • 1 tsp gelatin powder This helps to set your mousse.
  • 1 tbsp water To bloom the gelatin.
  • 1/2 cup cold heavy cream (for whipping) Keeps your mousse light.
  • 100 g milk chocolate, finely chopped Use high-quality chocolate.
  • 100 g white chocolate, finely chopped Select a creamy white chocolate for the best outcome.

Method
 

Make the Chocolate Cake Base
  1. Preheat the Oven: Set your oven to 175 degrees C (350 degrees F). Line the bottom of a 9-inch springform pan with parchment paper.
  2. Whisk the Dry Ingredients: In a small bowl, whisk together flour, cocoa powder, baking powder, and salt.
  3. Beat the Eggs and Sugar: In a separate bowl, use a hand mixer to beat the eggs and sugar for about 4 minutes until pale and fluffy.
  4. Combine Wet Ingredients: Add milk, oil, and vanilla to the egg mixture and mix briefly.
  5. Incorporate Dry Ingredients: Sift the dry ingredients into the wet mixture and fold gently until just combined.
  6. Bake: Pour the batter into the pan and bake for 12-15 minutes or until a toothpick inserted comes out clean.
  7. Cool and Prepare: Cool completely, then remove from the pan and place it at the bottom of a clean springform pan.
Make the Dark Chocolate Mousse
  1. Bloom the Gelatin: Combine gelatin and water in a small bowl and let it sit for 5 minutes.
  2. Heat Cream and Milk: In a saucepan, heat the cream and milk until steaming, but do not boil.
  3. Combine: Stir in bloomed gelatin until fully dissolved and pour over finely chopped dark chocolate. Cool slightly.
  4. Whip Cream: Whip the cold heavy cream to soft peaks and fold into the chocolate mixture.
  5. Set the Layer: Pour over the cooled cake base, smooth the top, and chill for about 30-45 minutes until set.
Make the Milk Chocolate Mousse
  1. Repeat the process: Follow the same blooming technique and mixing as with the dark chocolate mousse, substituting with milk chocolate.
  2. Pour and Chill: Pour the milk chocolate mousse over the dark chocolate layer and chill for another 30-45 minutes.
Make the White Chocolate Mousse
  1. Follow the same steps: Use the same method as the previous mousses with white chocolate.
  2. Final Chill: Chill for at least 4 hours or overnight.
Decorate the Cake
  1. Release the Cake: Run a warm knife along the edge of the springform pan and carefully release the cake.
  2. Garnish: Optionally, garnish with chocolate curls or cocoa powder before serving.

Notes

Use quality ingredients for best results. Store in the refrigerator for up to 5 days or freeze for up to a month. Can be made up to two days in advance.