Heavenly Raspberry Chocolate Mousse Cake Recipe
There is something truly magical about a dessert that marries rich chocolate with the bright, tangy burst of fresh berries, and the Heavenly Raspberry Chocolate Mousse Cake does exactly that. This luscious cake is a celebration of textures and flavors, combining moist chocolate layers with a light, velvety mousse infused with real raspberries. Each bite drifts effortlessly between decadence and freshness, making it a perfect centerpiece for any special occasion or simply a delightful treat to uplift your day.

Ingredients You’ll Need
Getting ready to make this cake is a joy itself, thanks to the simplicity and accessibility of the ingredients. Each element plays a crucial role, whether it’s building the cake’s tender crumb, delivering silky richness, or adding that pop of natural color and flavor.
- 1 cup all-purpose flour: The base of our cake layers, providing structure without heaviness.
- 1/2 cup unsweetened cocoa powder: Brings a deep, intense chocolate flavor that’s not overly sweet.
- 1 cup granulated sugar: Sweetens the cake just right, balancing bitterness from cocoa and tartness from raspberries.
- 1 tsp baking powder: Gives lift and fluffiness to the cake layers.
- 2 large eggs: Bind everything together and add richness.
- 1/2 cup vegetable oil: Keeps the cake moist and tender to the bite.
- 1/2 cup whole milk: Adds creaminess and helps blend the batter smoothly.
- 1 cup fresh raspberries: Fresh and vibrant, essential for that signature fruity burst in the mousse.
- 1 cup dark chocolate chips: The heart of the mousse — melted into silky goodness packed with deep chocolate notes.
- 1 tsp agar-agar powder: A natural setting agent that keeps the raspberry mousse perfectly smooth and light without gelatin.
How to Make Heavenly Raspberry Chocolate Mousse Cake
Step 1: Prepare and Bake the Cake Layers
Start by preheating your oven to 350°F (175°C) and greasing two round cake pans—it’s a small step but crucial to ensure your cakes release smoothly after baking. Then, whisk together the dry ingredients—flour, cocoa powder, sugar, and baking powder—in a large bowl. This gives an even blend of flavors and leavening agents.
Step 2: Combine Wet Ingredients and Mix Batter
In a separate bowl, vigorously mix the eggs, vegetable oil, and whole milk until the mixture looks frothy. This aeration is key to lightening the batter. Pour this into your dry ingredients and gently fold just until combined—overmixing can toughen the cake.
Step 3: Bake and Cool the Cake
Divide the batter evenly into the prepared pans and pop them into the oven. After about 25-30 minutes, insert a toothpick; if it comes out clean, your cake layers are done. Let the cakes cool completely before moving to the mousse preparation—the last thing you want is warm cake that melts your mousse.
Step 4: Make the Raspberry Chocolate Mousse
Now for the exciting part: melt the dark chocolate chips until silky smooth. Meanwhile, gently heat fresh raspberries with agar-agar powder until fully dissolved and thickened slightly. Combining these warm ingredients creates a glossy mousse mixture that’s airy yet rich, striking the perfect balance for your cake’s filling and topping.
Step 5: Assemble the Heavenly Raspberry Chocolate Mousse Cake
On your serving plate, place one cake layer and spread half of the raspberry chocolate mousse over it evenly. Add the second cake layer on top and finish by spreading the remaining mousse across the top, creating a luscious, inviting surface that hints at the flavors within. Refrigerate briefly if you like; this helps everything set beautifully and enhances the flavors.
How to Serve Heavenly Raspberry Chocolate Mousse Cake

Garnishes
For a stunning presentation, fresh raspberries scattered on top, a dusting of cocoa powder, or even a sprinkle of edible flower petals can elevate the cake’s look and profile. These simple garnishes echo the flavors inside and add a pop of color that’s as inviting as the taste.
Side Dishes
This cake pairs wonderfully with light accompaniments like a dollop of whipped cream, fresh mint leaves, or even a scoop of vanilla bean ice cream. These soften the richness while complementing the fruity and chocolatey notes.
Creative Ways to Present
Consider serving individual slices on elegant plates with a drizzle of raspberry coulis or chocolate drizzle around the edges. For a party, cut the cake into petite squares and add a raspberry on top for bite-sized indulgence that will wow your guests visually and in flavor.
Make Ahead and Storage
Storing Leftovers
The Heavenly Raspberry Chocolate Mousse Cake keeps beautifully in the refrigerator for up to 3 days. Cover it well with plastic wrap or an airtight container to maintain the mousse’s delicate texture and prevent drying out the cake layers.
Freezing
You can freeze the cake, but for best results, freeze the separate cake layers and mousse individually before assembly. This approach preserves the textures better. Wrap each component tightly and thaw overnight in the fridge before putting the cake together fresh.
Reheating
Since this cake features mousse, it is best served chilled or at room temperature. Avoid reheating as it might melt the mousse and alter the texture. Simply allow refrigerated slices to sit at room temperature for 15-20 minutes before serving to soften slightly.
FAQs
Can I use frozen raspberries for the mousse?
Absolutely! Frozen raspberries work well too—just thaw them completely and drain any excess liquid before heating with agar-agar to avoid making the mousse too runny.
Is agar-agar necessary, or can I use gelatin instead?
While gelatin is a common alternative, agar-agar is a great plant-based substitute that sets the mousse firmly and is suitable for vegetarians and vegans. If you prefer gelatin, use about twice the amount of powdered gelatin for the same setting effect.
Can I make this cake gluten free?
Yes, by swapping the all-purpose flour with a gluten-free baking blend and ensuring your cocoa powder and other ingredients are gluten-free, you can enjoy this cake without worry.
How long does the cake take to set after assembly?
It’s best to let the cake chill in the refrigerator for at least 2 hours, allowing the mousse to set perfectly and flavors to meld beautifully.
Can I add other berries instead of raspberries?
Definitely! Blueberries, blackberries, or a mixed berry combination can bring a different but equally delightful twist to the mousse while keeping the essence of the Heavenly Raspberry Chocolate Mousse Cake.
Final Thoughts
Making the Heavenly Raspberry Chocolate Mousse Cake is such a rewarding experience, not only because of its irresistible flavor and texture combination but also because it brings a sense of joy to any occasion. It’s a dessert that says you care, crafted with love and just a few simple ingredients. I encourage you to dive in and try this recipe—each slice promises a moment of pure, delightful indulgence.
PrintHeavenly Raspberry Chocolate Mousse Cake Recipe
This Heavenly Raspberry Chocolate Mousse Cake combines the rich, deep flavors of dark chocolate with the bright, tart freshness of raspberries. The light and airy chocolate mousse made with agar-agar creates a delightful contrast to the moist, cocoa-infused cake layers. Perfect for celebrations or a decadent dessert, this cake offers an elegant yet approachable treat that impresses with every bite.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour 50 minutes
- Yield: 8 servings 1x
- Category: Dessert
- Method: Baking, Mixing
- Cuisine: International
- Diet: Vegetarian
Ingredients
Cake Ingredients
- 1 cup all-purpose flour
- 1/2 cup unsweetened cocoa powder
- 1 cup granulated sugar
- 1 tsp baking powder
- 2 large eggs
- 1/2 cup vegetable oil
- 1/2 cup whole milk
Mousse Ingredients
- 1 cup fresh raspberries
- 1 cup dark chocolate chips
- 1 tsp agar-agar powder
Instructions
- Preheat and Prepare Pans: Preheat your oven to 350°F (175°C). Grease two round cake pans thoroughly to prevent sticking and set aside.
- Mix Dry Ingredients: In a large bowl, whisk together the all-purpose flour, unsweetened cocoa powder, granulated sugar, and baking powder until well combined.
- Combine Wet Ingredients: In a separate bowl, beat the eggs, vegetable oil, and whole milk together until the mixture is frothy and smooth. Gradually add this wet mixture into the dry ingredients, stirring until just combined to form a smooth batter.
- Bake the Cake Layers: Divide the batter evenly between the two prepared pans. Bake for 25-30 minutes, or until a toothpick inserted into the center of the cakes comes out clean. Allow the cakes to cool completely in their pans.
- Prepare the Mousse: Melt the dark chocolate chips gently, either over a double boiler or in short bursts in the microwave, stirring until smooth. In a small saucepan, heat the fresh raspberries with agar-agar powder, stirring frequently until the agar-agar dissolves completely and the mixture thickens slightly. Blend the raspberry mixture and gently fold it into the melted chocolate to create a smooth mousse.
- Assemble the Cake: Place one cake layer on a serving plate. Spread half of the raspberry chocolate mousse evenly over the top. Carefully place the second cake layer over the mousse, then spread the remaining mousse over the top of the cake. Chill the completed cake for at least 1 hour before serving to allow the mousse to set.
Notes
- Use fresh, ripe raspberries for the best flavor in the mousse.
- Agar-agar powder is a vegan-friendly gelatin substitute that helps the mousse set firmly.
- Ensure the cake layers are completely cool before assembling to prevent melting the mousse.
- You can substitute dark chocolate chips with semi-sweet or bittersweet chocolate depending on your taste preference.
- For a gluten-free version, replace all-purpose flour with a gluten-free flour blend.
Nutrition
- Serving Size: 1 slice (1/8 cake)
- Calories: 350 kcal
- Sugar: 30 g
- Sodium: 120 mg
- Fat: 18 g
- Saturated Fat: 7 g
- Unsaturated Fat: 9 g
- Trans Fat: 0 g
- Carbohydrates: 42 g
- Fiber: 4 g
- Protein: 5 g
- Cholesterol: 45 mg
Keywords: chocolate mousse cake, raspberry chocolate cake, homemade chocolate cake, raspberry mousse dessert, easy mousse cake recipe