Ingredients:
- 2 cups (250g) all-purpose flour
- 3/4 cup (65g) dark cocoa powder
- 2 cups (400g) granulated sugar
- 1 1/2 tsp (7g) baking powder
- 1 1/2 tsp (7g) baking soda
- 1 tsp (5g) salt
- 2 large eggs
- 1 cup (240ml) whole milk
- 1/2 cup (120ml) neutral oil
- 2 tsp (10ml) vanilla extract
- 1 cup (240ml) boiling water
- 12 oz (340g) fresh raspberries
- 1/4 cup (50g) granulated sugar
- 1 tbsp (15ml) lemon juice
- 1 tsp (5g) cornstarch
- 1 tbsp water
- 8 oz (225g) dark chocolate (60% cocoa or higher), finely chopped
- 1 cup (240ml) heavy cream
- 2 tbsp (28g) unsalted butter
Instructions:
- Preheat oven to 350°F (175°C). Grease two 8-inch round cake pans and line the bottoms with parchment paper.
- Sift together flour, cocoa, sugar, baking powder, baking soda, and salt in a large bowl.
- Add eggs, milk, oil, and vanilla to the dry ingredients and beat on medium speed until smooth.
- Stir in the boiling water by hand until the batter is thin and combined.
- Divide the batter evenly between the two pans and bake for 30–35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Cool cakes in the pans for 10 minutes before transferring to a wire rack to cool completely.
- Combine raspberries, sugar, and lemon juice in a saucepan over medium heat.
- Mash the berries with a fork as they heat until they release their juices.
- Stir in the cornstarch dissolved in 1 tbsp water and simmer for 2–3 minutes until the sauce thickens.
- Remove raspberry reduction from heat and let cool completely.
- Place one cake layer on a plate and spread a generous layer of raspberry reduction, leaving a 1/2 inch border around the edge.
- Place the second cake layer on top of the raspberry reduction.
- Heat heavy cream until it begins to simmer, then pour over the chopped dark chocolate and let sit for 5 minutes.
- Stir the chocolate and cream slowly from the center outward until glossy, then stir in the room temperature butter.
- Pour the ganache over the assembled cake, smoothing it with an offset spatula.