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Dark Chocolate Raspberry Mousse Cake

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Dark Chocolate Raspberry Mousse Cake is a must-try! Rich, smooth mousse layered with tart raspberries and decadent chocolate cake.

Ingredients

For the Chocolate Cake Layer:

1 cup all-purpose flour

½ cup unsweetened cocoa powder

1 tsp baking powder

½ tsp baking soda

¼ tsp salt

2 large eggs

¾ cup granulated sugar

½ cup sour cream

¼ cup vegetable oil

½ cup brewed coffee or hot water

1 tsp vanilla extract

For the Raspberry Filling:

1½ cups fresh or frozen raspberries

2 tbsp sugar

1 tbsp lemon juice

1 tbsp cornstarch mixed with 1 tbsp water

For the Dark Chocolate Mousse:

8 oz dark chocolate, chopped

1½ cups heavy whipping cream, divided

2 tbsp powdered sugar

1 tsp vanilla extract

For the Ganache Topping (optional):

½ cup heavy cream

4 oz dark chocolate, finely chopped

Garnish:

Fresh raspberries

Chocolate shavings or curls (optional)

Powdered sugar (optional)

Instructions

Make the Cake Layer:

Preheat oven to 350°F (175°C). Grease and line a 9-inch springform pan.

In a bowl, whisk dry ingredients. In another, beat eggs, sugar, sour cream, oil, coffee, and vanilla.

Combine wet and dry mixtures; pour into pan and bake for 20–25 minutes. Cool completely.

Prepare the Raspberry Filling:

In a saucepan, combine raspberries, sugar, and lemon juice. Bring to a simmer.

Add cornstarch slurry and cook until thickened. Cool completely.

Make the Mousse:

Melt chocolate with ½ cup cream in a heatproof bowl over simmering water. Let cool slightly.

Whip remaining 1 cup cream with powdered sugar and vanilla to stiff peaks.

Fold chocolate mixture into whipped cream until smooth.

Assemble the Cake:

Place cooled cake layer in a clean springform pan. Spread raspberry filling over the cake.

Top with dark chocolate mousse and smooth the top. Chill for at least 4 hours or until set.

Add Ganache (Optional):

Heat cream until simmering, pour over chopped chocolate, let sit, then stir until smooth.

Pour ganache over the chilled mousse layer and refrigerate 30 minutes more.

Garnish and Serve:

Top with fresh raspberries and chocolate shavings. Slice and serve chilled.

Notes

For a shortcut, use store-bought raspberry preserves.

Can be made 1–2 days ahead.

Freeze for longer storage—thaw overnight in the fridge.