Dark Chocolate Raspberry Mousse Cake Recipe
There is something truly magical about the rich, velvety texture and bold flavors of a Dark Chocolate Raspberry Mousse Cake, a dessert that perfectly balances deep chocolate indulgence with the bright, tangy burst of fresh raspberries. This cake is a showstopper for any occasion, bringing together the smoothness of dark chocolate mousse, the moistness of cocoa-infused cake layers, and the refreshing sweetness of raspberry puree. If you’ve been searching for a dessert to dazzle friends or simply treat yourself, the Dark Chocolate Raspberry Mousse Cake is going to become your new favorite go-to recipe.

Ingredients You’ll Need
Gathering simple, quality ingredients is the first secret to creating a Dark Chocolate Raspberry Mousse Cake that tastes as wonderful as it looks. Each component plays a key role in building layers of flavor and texture that make this cake so unforgettable.
- 1 cup All-purpose flour: Provides the perfect structure for the cake layers, keeping them tender yet sturdy.
- 1/2 cup Unsweetened cocoa powder: Delivers a rich, chocolatey base flavor that’s essential for any dark chocolate dessert.
- 1 teaspoon Baking powder: Works to help your cake rise beautifully and stay fluffy.
- 1/2 teaspoon Baking soda: Enhances leavening for a light texture when combined with the baking powder.
- 1/4 teaspoon Salt: Just a pinch to amplify all the sweet and chocolatey flavors.
- 1/2 cup Unsalted butter: Softened for easy mixing and adding moist richness to the cake.
- 1 cup Granulated sugar: Sweetens the cake to balance the cocoa’s natural bitterness.
- 2 large Eggs: Provide moisture and bind all ingredients seamlessly.
- 1 teaspoon Vanilla extract: Lifts the flavor profile with its warm, aromatic notes.
- 1/2 cup Buttermilk: Adds moisture and a subtle tang, making the crumb tender and soft.
- 1 cup Fresh raspberries (plus extra for garnish): For that bright, fruity burst and natural sweetness in the mousse and topping.
- 1/4 cup Granulated sugar (for mousse): Sweetens the raspberry puree just enough to balance tartness.
- 1 cup Heavy cream (for mousse): Whipped to create that luscious, airy texture crucial in mousse.
- 1 teaspoon Vanilla extract (for mousse): Adds depth to the raspberry mousse’s flavor.
- 4 ounces Dark chocolate (melted and cooled for mousse): The heart of the mousse, offering decadent richness.
- 4 ounces Dark chocolate (chopped for ganache): For the silky ganache that crowns the cake in luxurious chocolate glaze.
- 1/2 cup Heavy cream (for ganache): Used to create a smooth, glossy finish that enhances the cake’s elegance.
How to Make Dark Chocolate Raspberry Mousse Cake
Step 1: Prepare the Cake Batter
Start by preheating your oven to 350°F (175°C) and greasing and flouring an 8-inch round cake pan perfectly to ensure your cake won’t stick. Next, whisk your dry ingredients – all-purpose flour, unsweetened cocoa powder, baking powder, baking soda, and salt – in a bowl until well combined. This mixture provides that rich chocolate foundation for the cake layers.
Step 2: Cream Butter and Sugar
Using a large mixing bowl, beat softened unsalted butter and granulated sugar until the mixture turns light, fluffy, and beautifully pale, roughly 3 to 5 minutes. This step is crucial for incorporating air, resulting in a tender crumb texture that everyone will adore.
Step 3: Add Eggs and Vanilla
Beat in the eggs one at a time, making sure each is well mixed in. This helps maintain the batter’s smooth consistency. Stir in the vanilla extract to add a warm undertone that’s like a little hug in every bite.
Step 4: Combine Dry Ingredients and Buttermilk
Incorporate the dry ingredients gradually into the butter mixture, alternating with buttermilk to keep the batter moist and tender. Mix just until combined to avoid overworking the batter — this keeps your Dark Chocolate Raspberry Mousse Cake delightfully soft.
Step 5: Bake the Cake
Pour the batter into your prepared pan and smooth the surface. Bake it for 25 to 30 minutes, or until a toothpick inserted comes out clean. Cooling the cake properly is essential before moving to the mousse layer.
Step 6: Make the Raspberry Mousse
Puree fresh raspberries with sugar in a blender for that bright, natural sweetness, then strain to remove seeds, creating a silky raspberry puree. Whip heavy cream and vanilla extract until soft peaks form, gently folding in the melted and cooled dark chocolate followed by the raspberry puree. Refrigerate this luscious mousse for about 30 minutes to help it set beautifully.
Step 7: Assemble the Cake
Once your cake is fully cooled, carefully slice it horizontally into two even layers. Place one layer on your serving plate, spread half the raspberry mousse evenly over it, then top with the second cake layer and finish with the remaining mousse on top. Chill the whole cake in your refrigerator for at least 1 hour to let those flavors meld beautifully.
Step 8: Prepare and Add Ganache
Gently heat heavy cream until just boiling and pour it over chopped dark chocolate. Let the mixture sit to soften the chocolate, then stir until shiny and smooth. Drizzle this decadent ganache over your chilled cake to add that luxurious finish that will make your Dark Chocolate Raspberry Mousse Cake look as fabulous as it tastes.
How to Serve Dark Chocolate Raspberry Mousse Cake

Garnishes
The simplest garnishes can turn your Dark Chocolate Raspberry Mousse Cake into a visual masterpiece. Fresh raspberries arranged on top provide vibrant pops of color and tangy bursts that complement the richness perfectly. A sprinkle of dark chocolate shavings or a light dusting of cocoa powder can add a touch of elegance and texture.
Side Dishes
Pairing this cake with light, fresh accompaniments highlights its richness. A dollop of whipped cream or a scoop of vanilla bean ice cream balances the tartness of the raspberries. For a more indulgent spread, a small serving of fresh berries or a mint sprig on the side enhances the cake’s flavors without overpowering them.
Creative Ways to Present
Presentation can be as fun as baking the cake itself! Serving individual slices in delicate glassware layered with extra raspberry mousse is a playful alternative. You could also use edible flowers or drizzle raspberry coulis around each slice for a restaurant-worthy touch. The Dark Chocolate Raspberry Mousse Cake’s versatility makes it perfect for both casual family dinners and fancy celebrations.
Make Ahead and Storage
Storing Leftovers
Once assembled, store your Dark Chocolate Raspberry Mousse Cake covered in the refrigerator to maintain its freshness and moisture. It will keep wonderfully for up to 3 days without losing that fantastic mousse texture and layered flavor.
Freezing
You can freeze slices of the cake wrapped tightly in plastic wrap and foil for up to 2 months. When you’re ready to enjoy it again, thaw the cake overnight in the refrigerator to keep the mousse delicate and creamy rather than icy or dry.
Reheating
This cake is best served chilled, so reheating isn’t recommended. However, allowing the cake to sit at room temperature for about 20 minutes before serving can soften the mousse and ganache slightly, enhancing the overall eating experience.
FAQs
Can I use frozen raspberries instead of fresh?
Absolutely! Frozen raspberries work well for the mousse, just be sure to thaw and strain them properly to remove excess liquid and seeds for a smooth texture.
Is it possible to make this cake vegan?
While this recipe relies on eggs, butter, and cream for its texture and flavor, you can experiment with plant-based alternatives like flax eggs, vegan butter, and coconut cream, though the texture and taste will vary somewhat.
What type of dark chocolate is best for the mousse?
Choose a good quality dark chocolate with at least 60-70% cocoa content for a deep, rich flavor that balances well with the berries without being overly bitter.
Can I make the mousse in advance?
Yes, the raspberry mousse can be prepared a day ahead and refrigerated. It may need a gentle whisk before assembling the cake to refresh its texture.
How do I prevent the cake from drying out?
Properly greasing and flouring your pan and not overbaking are key. Also, assembling the cake soon after it cools and storing it in an airtight container helps keep the cake moist and delicious.
Final Thoughts
Trust me, once you make this Dark Chocolate Raspberry Mousse Cake, it’s going to be the dessert you crave repeatedly, the one that impresses every guest, and ultimately, the sweet celebration of chocolate and berries you never knew you needed. Dive in, get your hands a little messy, and treat yourself to a slice of this luscious dream — you deserve it!
PrintDark Chocolate Raspberry Mousse Cake Recipe
This decadent Dark Chocolate Raspberry Mousse Cake combines a rich, moist chocolate cake with a light and airy raspberry mousse, topped with a silky dark chocolate ganache. Perfect for special occasions or a luxurious dessert treat.
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Total Time: 2 hours
- Yield: 8 servings 1x
- Category: Dessert
- Method: Baking and assembling
- Cuisine: American
- Diet: Vegetarian
Ingredients
Cake
- 1 cup All-purpose flour
- 1/2 cup Unsweetened cocoa powder
- 1 teaspoon Baking powder
- 1/2 teaspoon Baking soda
- 1/4 teaspoon Salt
- 1/2 cup Unsalted butter, softened
- 1 cup Granulated sugar
- 2 large Eggs
- 1 teaspoon Vanilla extract
- 1/2 cup Buttermilk
Raspberry Mousse
- 1 cup Fresh raspberries (plus extra for garnish)
- 1/4 cup Granulated sugar
- 1 cup Heavy cream
- 1 teaspoon Vanilla extract
- 4 ounces Dark chocolate, melted and cooled
Ganache
- 4 ounces Dark chocolate, chopped
- 1/2 cup Heavy cream
Instructions
- Prepare cake pan: Preheat the oven to 350°F (175°C) and grease and flour an 8-inch round cake pan to ensure the cake does not stick.
- Mix dry ingredients: In a bowl, whisk together the all-purpose flour, unsweetened cocoa powder, baking powder, baking soda, and salt to evenly distribute the leavening agents and cocoa.
- Cream butter and sugar: In a large mixing bowl, beat the softened unsalted butter and granulated sugar until light and fluffy, about 3-5 minutes, to incorporate air for a tender cake crumb.
- Add eggs and vanilla: Add eggs one at a time, mixing well after each addition, then stir in vanilla extract to enhance flavor.
- Combine wet and dry ingredients: Gradually add the dry ingredients to the butter mixture, alternating with buttermilk, mixing until just combined to avoid overmixing which can lead to a dense cake.
- Bake the cake: Pour the batter into the prepared pan and smooth the surface. Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
- Cool the cake: Let the cake cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely before assembling.
- Make raspberry puree: Puree the fresh raspberries with sugar in a blender, then strain through a fine mesh sieve to remove seeds, creating a smooth puree.
- Prepare mousse: Whip heavy cream with vanilla extract until soft peaks form, then gently fold in melted dark chocolate and the strained raspberry puree, mixing carefully to keep the mousse light.
- Chill mousse: Refrigerate the raspberry mousse for about 30 minutes to help it set and develop structure for layering.
- Slice the cake: Once completely cooled, slice the cake horizontally into two layers using a long serrated knife.
- Assemble layers: Place one cake layer on a serving plate, spread half of the raspberry mousse evenly over it, then top with the second cake layer and spread the remaining mousse on top.
- Chill the assembled cake: Refrigerate the cake for at least 1 hour to allow the mousse layers to firm up and flavors to meld.
- Make ganache: Heat the heavy cream until just boiling, pour over the chopped dark chocolate, and let sit for a few minutes before stirring until smooth and glossy.
- Finish and serve: Drizzle the prepared ganache over the chilled cake. Garnish with fresh raspberries if desired, then slice and serve.
Notes
- Ensure the dark chocolate for the mousse is melted and cooled slightly to prevent curdling the whipped cream.
- Straining the raspberry puree removes seeds for a smoother mousse texture.
- Chilling the mousse before layering helps it set and makes assembly easier.
- Use a serrated knife and a gentle sawing motion to slice the cake without crumbling.
- Ganache can be made ahead and gently reheated if necessary before drizzling.
- Store the finished cake in the refrigerator and consume within 3 days for best freshness.
Nutrition
- Serving Size: 1 slice (1/8 of cake)
- Calories: 410
- Sugar: 35g
- Sodium: 150mg
- Fat: 28g
- Saturated Fat: 17g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 4g
- Protein: 5g
- Cholesterol: 85mg
Keywords: Dark chocolate cake, raspberry mousse, chocolate ganache, layered cake, dessert, chocolate raspberry cake

