Chocolate Mousse Cake 🎂
If you love chocolate in all its forms—light, fluffy, dense, and rich—then this Chocolate Mousse Cake will send you straight to dessert heaven. With a base of moist chocolate cake and a luscious, airy mousse topping, this cake is both elegant and indulgent. It’s perfect for birthdays, holidays, or whenever you need a showstopping dessert to impress.
🌟 Why I Love This Recipe
This recipe hits all the best textures:
✅ Moist and tender chocolate cake base
✅ Light, creamy, melt-in-your-mouth mousse
✅ Finished with whipped cream and chocolate shavings
It’s decadent but balanced, rich without being overly heavy, and surprisingly simple to assemble with no special equipment required—just bowls, whisks, and a little love.
🛒 Ingredients
For the Chocolate Cake:
- 1 cup all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 tsp baking powder
- ½ tsp baking soda
- ¼ tsp salt
- ½ cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- ½ cup buttermilk
For the Chocolate Mousse:
- 8 oz semi-sweet chocolate, chopped
- 2 tbsp unsalted butter
- 3 large eggs, separated
- ¼ cup granulated sugar
- 1 cup heavy cream
- 1 tsp vanilla extract
For the Topping:
- Whipped cream, for garnish
- Chocolate shavings, for garnish
⏱️ Total Time: ~1 hour + chilling
🍰 Yield: 8–10 slices
👩🍳 Instructions
STEP 1: Make the Cake
- Preheat Oven
Preheat to 350°F (175°C). Grease and flour an 8-inch round cake pan. - Mix Dry Ingredients
In a bowl, whisk together:- Flour
- Cocoa powder
- Baking powder
- Baking soda
- Salt
- Cream Butter and Sugar
In a large bowl, cream butter and sugar until light and fluffy. - Add Eggs and Vanilla
Beat in the eggs one at a time, then add vanilla extract. - Combine Mixtures
Add the dry mixture to the wet ingredients in batches, alternating with buttermilk. Mix until just combined. - Bake
Pour batter into prepared pan and bake for 25–30 minutes, or until a toothpick comes out clean.
Let the cake cool completely in the pan.
STEP 2: Make the Mousse
- Melt Chocolate
In a heatproof bowl, melt:- Chocolate
- Butter
Let cool slightly. - Whip Egg Whites
In a clean bowl, beat egg whites until soft peaks form.
Gradually add sugar and beat until stiff peaks form. - Mix Yolks and Chocolate
Stir egg yolks into the cooled chocolate mixture. - Fold in Egg Whites
Gently fold in the whipped egg whites until no white streaks remain. - Whip Cream
In a separate bowl, whip heavy cream with vanilla extract until soft peaks form. - Fold Cream into Chocolate Mixture
Carefully fold the whipped cream into the chocolate base. The result should be smooth and airy.
STEP 3: Assemble the Cake
- Remove Cake from Pan
Place the cooled cake on a serving platter or cake stand. - Add Mousse Layer
Spread the mousse evenly over the top of the cake.
Smooth the surface with a spatula. - Chill
Refrigerate the cake for at least 2–3 hours (or overnight) until the mousse is fully set. - Decorate
Before serving, top with whipped cream swirls and a sprinkle of chocolate shavings.
💡 Tips for Mousse Cake Success
- Separate eggs carefully—any yolk in the whites can prevent stiff peaks.
- Don’t rush the cooling and chilling steps—they’re key for mousse texture.
- Use a springform pan if you want perfect sides and easy release.
- For extra chocolate intensity, add a teaspoon of espresso powder to the cake batter.
🍽️ Serving Suggestions
Serve chilled with:
- A glass of cold milk
- A mug of espresso or mocha
- Or alongside Peanut Butter Brownies for a truly indulgent dessert plate
Pair with:
🧊 Storage & Make-Ahead Tips
- Store in the fridge, covered, for up to 4 days.
- For clean slices, run a knife under hot water and wipe between cuts.
- Freeze slices individually (without whipped cream) for up to 1 month.
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🍫 Final Thoughts
This Chocolate Mousse Cake is everything a chocolate dessert should be—moist, rich, airy, and unforgettable. The balance of textures and deep chocolate flavor makes this cake a showstopper for any special occasion or just a well-deserved treat for yourself.
If you make it, tag @chefmaniac on Instagram—we’d love to see your delicious creation! And don’t forget to subscribe for more decadent bakes and elegant dessert inspiration.
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