Ingredients:
- 1 ½ cups (192g) all-purpose flour
- ¾ cup (65g) unsweetened cocoa powder
- 1 ½ teaspoons baking powder
- 1 ½ teaspoons baking soda
- ¾ teaspoon salt
- 1 ½ cups (300g) granulated sugar
- ¾ cup (180ml) buttermilk, room temperature
- ¾ cup (180ml) vegetable oil
- 2 large eggs, room temperature
- 2 teaspoons vanilla extract
- ¾ cup (180ml) boiling water
- 2 teaspoons instant espresso powder (optional)
- 12 ounces (340g) fresh raspberries
- ¼ cup (60ml) water
- ½ cup (100g) granulated sugar
- 2 teaspoons lemon juice
- 2 teaspoons powdered gelatin
- 2 tablespoons (30ml) cold water
- 1 ½ cups (360ml) heavy cream, very cold
- 8 ounces (225g) bittersweet chocolate, finely chopped
- 1 cup (240ml) heavy cream
- 2 tablespoons (28g) unsalted butter, room temperature
- Fresh raspberries (optional)
- Chocolate shavings (optional)
Instructions:
- Grease and flour two 9-inch cake pans, line bottoms with parchment paper rounds.
- Whisk dry cake ingredients together.
- In a separate bowl, whisk wet cake ingredients (except boiling water).
- Combine wet and dry cake ingredients.
- Gradually add boiling water and espresso powder (if using).
- Divide cake batter evenly between cake pans.
- Bake until a toothpick inserted into the center comes out clean.
- Cool cake in pans for 10 minutes, then invert onto a wire rack to cool completely.
- Bloom gelatin in cold water for the mousse.
- Combine raspberries, water, sugar, and lemon juice in a saucepan.
- Cook until raspberries are softened, then puree.
- Strain puree through a fine-mesh sieve (optional).
- Stir in bloomed gelatin until dissolved.
- Let mousse cool slightly.
- Whip heavy cream to stiff peaks.
- Gently fold raspberry mixture into whipped cream.
- Refrigerate mousse to set.
- Place chopped chocolate in a heat-safe bowl for ganache.
- Heat heavy cream until simmering.
- Pour hot cream over chocolate and let stand for 1 minute.
- Whisk until ganache is smooth.
- Stir in butter until melted and incorporated.
- Let ganache cool slightly.
- Level cake layers (if necessary).
- Place one cake layer on a serving plate.
- Spread a thick layer of raspberry mousse on top.
- Top with the second cake layer.
- Pour chocolate ganache over the top, allowing it to drip down the sides.
- Decorate with fresh raspberries and chocolate shavings (optional).
- Refrigerate for at least 30 minutes to allow ganache to set.