Chocolate Mousse Cake

Why You’ll Love This Recipe

Chocolate Mousse Cake is a decadent dessert that layers a rich, velvety chocolate mousse over a soft, moist cake base. With its smooth, airy texture and deep chocolate flavor, this cake is the perfect treat for special occasions or any time you’re craving something indulgent. The combination of light mousse and dense cake creates an irresistible dessert that will melt in your mouth with every bite.

ingredients

Chocolate Mousse Cake 10 Chocolate Mousse Cake is a decadent dessert that layers a rich, velvety chocolate mousse over a soft, moist cake base. With its smooth, airy texture and deep chocolate flavor, this cake is the perfect treat for special occasions or any time you're craving something indulgent. The combination of light mousse and dense cake creates an irresistible dessert that will melt in your mouth with every bite.

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the cake: unsalted buttergranulated sugareggsall-purpose flourbaking powderunsweetened cocoa powdersaltmilkvanilla extract

For the mousse: dark chocolateheavy creamgranulated sugaregg yolkvanilla extractgelatin (optional, for stability)

For the topping: whipped creamshaved chocolate (optional)

directions

For the cake:

Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.

In a mixing bowl, cream together the butter and sugar until light and fluffy.

Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.

In a separate bowl, whisk together the flour, baking powder, cocoa powder, and salt.

Gradually add the dry ingredients to the wet mixture, alternating with the milk. Mix until smooth.

Pour the batter into the prepared cake pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

Allow the cake to cool completely in the pan before transferring it to a wire rack.

For the mousse:

Melt the dark chocolate in a heatproof bowl over simmering water or in the microwave, stirring occasionally. Set aside to cool slightly.

In a separate bowl, whip the heavy cream and sugar until soft peaks form.

In another bowl, whisk the egg yolk and vanilla extract until smooth.

Gently fold the melted chocolate into the egg yolk mixture until well combined, then fold in the whipped cream, being careful not to deflate it.

If using gelatin, dissolve it in a small amount of water and fold it into the mousse mixture for added stability.

Spread the mousse over the cooled cake, smoothing it out evenly. Chill in the refrigerator for at least 4 hours, or until set.

For the topping:

Once the mousse is set, top the cake with freshly whipped cream and shaved chocolate for garnish, if desired.

Slice and serve chilled.

Servings and timing

This recipe yields approximately 10 servings.Preparation time: 20 minutesBaking time: 25-30 minutesChilling time: 4 hoursTotal time: 5 hours 30 minutes

Variations

Add a layer of fruit, like raspberries or strawberries, between the cake and mousse for a fruity twist.

Use milk or white chocolate instead of dark chocolate for a different flavor profile.

For a richer taste, soak the cake layer in a bit of coffee or liqueur before adding the mousse.

Try adding a bit of instant coffee or espresso powder to the mousse to enhance the chocolate flavor.

storage/reheating

Store Chocolate Mousse Cake in an airtight container in the refrigerator for up to 3 days. The mousse will keep its smooth texture as long as it’s kept chilled. Do not attempt to reheat the cake.

FAQs

Chocolate Mousse Cake
Chocolate Mousse Cake 11 Chocolate Mousse Cake is a decadent dessert that layers a rich, velvety chocolate mousse over a soft, moist cake base. With its smooth, airy texture and deep chocolate flavor, this cake is the perfect treat for special occasions or any time you're craving something indulgent. The combination of light mousse and dense cake creates an irresistible dessert that will melt in your mouth with every bite.

Can I make this cake ahead of time?

Yes, you can make the cake and mousse in advance. Just be sure to chill the mousse for at least 4 hours or overnight before serving.

Can I use a different type of chocolate?

You can use milk chocolate or white chocolate, but the flavor and texture of the mousse will change slightly.

Can I make this cake without eggs?

Yes, you can use egg substitutes or a vegan mousse made with dairy-free chocolate and whipped coconut cream.

Do I need to use gelatin in the mousse?

Gelatin is optional, but it helps stabilize the mousse and gives it a firmer texture. You can skip it if you prefer a softer mousse.

Can I freeze this cake?

Yes, you can freeze the mousse cake for up to 1 month. Be sure to wrap it tightly before freezing and thaw it in the fridge before serving.

Conclusion

Chocolate Mousse Cake is a show-stopping dessert that combines the best of both worlds: a light, airy mousse atop a rich, moist cake. Whether you’re celebrating a special occasion or simply treating yourself to something extraordinary, this cake will satisfy your chocolate cravings and leave everyone asking for seconds. Indulge in this luxurious dessert that’s sure to impress!

Print
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Chocolate Mousse Cake

Chocolate Mousse Cake

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  • Author: KimEasy
  • Prep Time: 30 minutes
  • Cook Time: 30 minutes
  • Total Time: 3 hours (including chilling time)
  • Yield: 810 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

A rich, creamy, and decadent chocolate mousse cake with layers of velvety mousse and a smooth, chocolatey sponge cake base. Perfect for any special occasion.


Ingredients

Units Scale
  • For the sponge cake:
  • 1/2 cup all-purpose flour
  • 1/2 cup granulated sugar
  • 1/4 cup unsweetened cocoa powder
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 2 large eggs
  • 1/2 teaspoon vanilla extract
  • 1/4 cup whole milk
  • 1/4 cup vegetable oil
  • 1/2 cup boiling water
  • For the chocolate mousse filling:
  • 8 oz semisweet chocolate, chopped
  • 2 cups heavy cream, divided
  • 1/4 cup powdered sugar
  • 1 teaspoon vanilla extract
  • For the chocolate ganache topping:
  • 4 oz semisweet chocolate, chopped
  • 1/2 cup heavy cream
  • For garnish (optional):
  • Whipped cream
  • Shaved chocolate or cocoa powder

Instructions

  1. Preheat the oven to 350°F (175°C). Grease and line an 8-inch round cake pan with parchment paper.
  2. In a medium bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
  3. In a separate bowl, whisk the eggs, vanilla extract, milk, and oil until well combined.
  4. Gradually add the wet ingredients to the dry ingredients and mix until smooth.
  5. Slowly add the boiling water to the batter, mixing until well combined. The batter will be thin, which is fine.
  6. Pour the batter into the prepared cake pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
  7. Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.
  8. While the cake cools, prepare the chocolate mousse. In a heatproof bowl, melt the semisweet chocolate over a double boiler or in the microwave in 20-second intervals, stirring in between until smooth. Allow the chocolate to cool slightly.
  9. In a separate bowl, beat the heavy cream and powdered sugar until soft peaks form. Add the vanilla extract and continue beating until stiff peaks form.
  10. Gently fold the cooled melted chocolate into the whipped cream until fully incorporated, creating a smooth mousse filling.
  11. Once the cake has cooled, slice it into two even layers. Place the first layer on a serving plate or cake stand.
  12. Spread the chocolate mousse evenly over the first layer of cake. Place the second layer of cake on top of the mousse.
  13. For the ganache topping, heat the heavy cream in a small saucepan until it just begins to simmer. Remove from heat and add the chopped chocolate. Stir until smooth and glossy.
  14. Pour the ganache over the top of the cake, allowing it to drip down the sides. Smooth the top with a spatula if needed.
  15. Chill the cake in the refrigerator for at least 2 hours to allow the mousse and ganache to set.
  16. Before serving, garnish with whipped cream and shaved chocolate or a dusting of cocoa powder if desired.

Notes

  • The cake can be made ahead of time and stored in the refrigerator for up to 3 days.
  • For a more intense chocolate flavor, use bittersweet or dark chocolate in the mousse and ganache.
  • Make sure the cake is completely cooled before adding the mousse and ganache to prevent them from melting.

Nutrition

  • Serving Size: 1 slice
  • Calories: 450
  • Sugar: 38g
  • Sodium: 85mg
  • Fat: 32g
  • Saturated Fat: 18g
  • Unsaturated Fat: 12g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 4g
  • Protein: 4g
  • Cholesterol: 90mg

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