Description
This decadent Chocolate Raspberry Mousse Cake combines a rich, moist chocolate sponge base with a light, airy raspberry mousse topping. The refreshing tartness of fresh raspberries balances the deep chocolate flavors, making it a perfect dessert for special occasions or indulgent treats. Made with natural ingredients like eggs, dark chocolate, and fresh raspberries, this cake is a beautiful fusion of creamy textures and vibrant flavors.
Ingredients
Scale
Chocolate Sponge
- 3 large eggs, room temperature
- 55 g light brown sugar
- 65 g granulated sugar
- 1 teaspoon vanilla extract
- 65 g plain flour (all-purpose)
- 15 g cocoa powder
- 1 teaspoon baking powder
- ½ teaspoon espresso powder
- ¼ teaspoon salt
- 75 g dark chocolate 75%, melted
Raspberry Mousse
- 2¼ teaspoons powdered gelatine
- 45 ml fresh lemon juice
- 400 g fresh raspberries (frozen can be substituted)
- 100 g granulated sugar
- 480 ml double cream (heavy cream), cold
Decoration
- 125 g fresh raspberries
- 50 g dark chocolate shavings
Instructions
- Prepare Chocolate Sponge: Grease and line the base and sides of a 23cm (9-inch) springform pan with baking paper. Preheat your oven to 180°C (350°F).
- Whip Eggs & Sugar: In a medium bowl, combine the eggs, light brown sugar, granulated sugar, and vanilla extract. Using a hand mixer on medium-high speed, whip the mixture for about 4 minutes until it becomes light, creamy, and thick enough that ribbons form when the whisk is lifted.
- Add Dry Ingredients: Sift together the plain flour, cocoa powder, baking powder, espresso powder, and salt. Gradually add these dry ingredients into the egg mixture, mixing on low speed until just a few streaks of flour remain to avoid overmixing.
- Incorporate Melted Chocolate: Carefully fold the melted dark chocolate into the batter using a rubber spatula, scraping down the sides to achieve a smooth, even mixture without deflating the batter.
- Bake Sponge: Pour the batter into the prepared pan, tap it gently on the counter to release any air bubbles, and smooth the surface with an offset spatula. Bake for 15-20 minutes, or until the center springs back when lightly pressed.
- Cool and Flatten Sponge: Remove the sponge from the oven and let it cool completely on a wire rack. Once cooled, press the wrinkled top flat with a flat glass or measuring cup base to create an even surface. Cover and refrigerate until you’re ready to assemble.
- Bloom Gelatine: In a small bowl, combine the powdered gelatine with fresh lemon juice. Let it sit for a few minutes to soften and bloom.
- Blend Raspberries: Puree the 400 g of fresh raspberries in a blender until completely smooth.
- Strain Raspberry Puree: Pass the raspberry puree through a fine sieve into a saucepan to remove seeds, aiming for about 300 ml of smooth pulp.
- Heat Raspberry Puree: Place the strained puree over medium-low heat, add the granulated sugar, and simmer gently while stirring frequently to dissolve the sugar.
- Dissolve Gelatine: Stir the bloomed gelatine mixture into the hot raspberry puree and continue heating gently without boiling, ensuring the gelatine completely dissolves.
- Strain Again & Cool: Strain the raspberry mixture once more to remove any lumps, then set aside to cool to room temperature (approximately 20 minutes).
- Whip Cream & Combine: Whip the cold double cream to soft peaks using a mixer. Gently fold the cooled raspberry puree into the whipped cream in three additions, maintaining the airy texture of the mousse.
- Assemble Mousse Cake: Pour the finished raspberry mousse over the chilled chocolate sponge in the springform pan. Smooth the surface with an offset spatula. Cover and refrigerate for at least 3 hours, preferably overnight, to allow the mousse to set properly.
- Decorate & Serve: Carefully remove the cake from the springform pan. Peel off the baking paper collar and smooth the edges if desired using a warm spatula. Decorate the top with fresh raspberries and dark chocolate shavings. Slice the cake with a warm, sharp knife and serve immediately for best texture and flavor.
Notes
- Use room temperature eggs to help achieve a light, airy sponge.
- For a deeper chocolate flavor, use high-quality 75% dark chocolate.
- Ensure the gelatine mixture does not boil to preserve setting ability.
- Refrigerate the cake overnight for the best mousse texture.
- Use a warm knife when slicing to achieve clean cake slices.
- Frozen raspberries can be substituted but thaw and drain excess liquid before using.
