Chocolate Mousse Cake
Every time I make this Chocolate Mousse Cake, it feels like I’m crafting a love letter in dessert form. There’s something irresistible about the way the airy mousse melts into the rich, fudgy cake base, creating bite after bite of pure bliss. I love how this cake turns an ordinary day into a celebration, perfect for birthdays, holidays, or just a little indulgence at home.
I’ve spent years perfecting my technique, balancing the lightness of the mousse with the decadent depth of dark chocolate. It’s a showstopper that never fails to impress, but still approachable enough to make even when you’re just craving something special on a Tuesday night. Honestly, it’s one of those desserts that makes you feel proud just setting it down on the table.
If you’ve tried my Cherry Chocolate Cheesecake or my Irresistible Funnel Cake Bites, then you already know I have a soft spot for dreamy, comforting sweets. This Chocolate Mousse Cake takes that passion to the next level — silky, elegant, and oh-so-decadent.



Why You’ll Love This Chocolate Mousse Cake
This cake is truly a dessert lover’s dream. The combination of textures — a dense, moist chocolate cake topped with fluffy, smooth mousse — is unforgettable. It’s as beautiful as it is delicious, perfect for impressing guests or treating yourself. Plus, it’s surprisingly easy to make with a few simple steps that guarantee a professional-looking result every time.
Ingredients
Dark chocolate: The star of the show, giving this cake its intense cocoa flavor and silky texture.
Heavy cream: Essential for creating the light and fluffy mousse layer.
Eggs: Provide structure and richness to the cake base.
Sugar: Balances the bitterness of the chocolate and sweetens the mousse.
Butter: Adds moisture and a luscious finish to the cake.
Vanilla extract: Enhances the depth of the chocolate flavor.
Salt: Just a pinch to make the chocolate pop.
How to Make Chocolate Mousse Cake
Step 1: Bake the Cake Base
Start by preheating your oven and preparing a round cake pan. Melt chocolate and butter together, then whisk in sugar, eggs, vanilla, and salt. Pour the batter into the pan and bake until just set. Let it cool completely before adding the mousse.
Step 2: Prepare the Mousse
Melt more dark chocolate and let it cool slightly. Whip the heavy cream until soft peaks form. Fold the melted chocolate into the whipped cream gently to create a light and airy mousse.
Step 3: Assemble the Cake
Spread the chocolate mousse over the cooled cake base, smoothing it out with an offset spatula. Chill the assembled cake in the refrigerator for at least 2 hours, or until the mousse is set.
Step 4: Serve and Enjoy
Before serving, you can dust the top with cocoa powder or add chocolate shavings for a beautiful finish. Slice and savor each bite of this dreamy Chocolate Mousse Cake.
Recipe Variations and Possible Substitutions
You can get creative with this Chocolate Mousse Cake. Try using milk chocolate for a sweeter, creamier version, or white chocolate mousse for a stunning contrast. If you prefer a gluten-free option, you can make the base with almond flour or even skip the cake layer entirely and serve it as a mousse dessert in individual cups. Adding a splash of espresso or liqueur like Baileys into the mousse also gives it a grown-up twist.
Serving and Pairing Suggestions
This cake is already a showstopper, but pairing it with fresh raspberries or a drizzle of raspberry coulis brings out the richness of the chocolate beautifully. A dollop of whipped cream and a sprinkle of shaved chocolate make each slice even more irresistible. It’s perfect with a strong coffee or a glass of dessert wine.



Storage and Reheating Tips
Keep your Chocolate Mousse Cake chilled in the refrigerator, covered, for up to 4 days. It’s best served cold. If you’d like to make it ahead, you can even freeze it — just wrap it well and thaw it overnight in the fridge before serving. This cake doesn’t really need reheating, but if desired, you can let it sit at room temperature for 20 minutes to slightly soften before enjoying.
FAQs
How long does Chocolate Mousse Cake last?
It will stay fresh in the refrigerator for up to 4 days, just keep it covered.
Can I freeze Chocolate Mousse Cake?
Yes, you can! Wrap it tightly in plastic wrap and freeze for up to 1 month. Thaw in the fridge overnight before serving.
Do I have to use dark chocolate for Chocolate Mousse Cake?
Not at all — feel free to use milk or even white chocolate to suit your taste.
Can I make Chocolate Mousse Cake ahead of time?
Absolutely. You can make it a day ahead and keep it chilled until ready to serve. It actually tastes even better the next day as the flavors meld.
Related Recipe You’ll Like
If you love this Chocolate Mousse Cake, don’t miss my Cherry Chocolate Cheesecake and Nutella French Toast Casserole. Both are rich, decadent, and sure to satisfy any sweet tooth.
Save and Share This Recipe for Later
If this Chocolate Mousse Cake has caught your eye, don’t forget to pin it to your dessert board on Pinterest so you can find it later. Share it with friends and family on social media, too — they’ll thank you for introducing them to such an unforgettable dessert. Your followers will love seeing this beauty pop up in their feed!
Chocolate Mousse Cake

This Chocolate Mousse Cake is a decadent dessert featuring a rich, fudgy chocolate cake base topped with an airy, silky chocolate mousse. Perfect for birthdays, holidays, or whenever you crave a showstopping chocolate treat, this cake is elegant yet easy to make. The combination of textures and deep cocoa flavors makes it a favorite for chocolate lovers everywhere.
Ingredients
- 8 oz Dark chocolate
- 1 1/2 cups Heavy cream
- 3 Eggs
- 3/4 cup Sugar
- 1/2 cup Butter
- 1 tsp Vanilla extract
- Pinch of Salt
Instructions
- Preheat oven and prepare a round cake pan.
- Melt chocolate and butter together, then whisk in sugar, eggs, vanilla, and salt.
- Pour batter into prepared pan and bake until just set. Cool completely.
- Melt more chocolate and let it cool slightly. Whip cream to soft peaks.
- Fold chocolate into whipped cream to create mousse.
- Spread mousse over cooled cake base and chill at least 2 hours.
- Before serving, garnish with cocoa powder or chocolate shavings if desired.
Notes
You can substitute milk or white chocolate for the mousse, or add espresso or liqueur for extra flavor. This cake can be made a day ahead and keeps well refrigerated.
Nutrition Information:
Yield:
12Serving Size:
1Amount Per Serving: Calories: 339Total Fat: 26gSaturated Fat: 16gTrans Fat: 1gUnsaturated Fat: 8gCholesterol: 102mgSodium: 102mgCarbohydrates: 25gFiber: 1gSugar: 22gProtein: 3g