Ingredients:
- 340g (12 oz) fresh or frozen raspberries
- 30g (2 tbsp) granulated sugar
- 15ml (1 tbsp) lemon juice
- 375g (3 cups) all-purpose flour, sifted
- 300g (1.5 cups) granulated sugar
- 12g (1 tbsp) baking powder
- 4g (0.5 tsp) salt
- 225g (1 cup) unsalted butter, room temperature and cubed
- 170g (6 oz) high-quality white chocolate, melted and cooled
- 4 large egg whites, room temperature
- 240ml (1 cup) whole milk, room temperature
- 10ml (2 tsp) pure vanilla extract
- 170g (6 oz) high-quality white chocolate, melted and cooled (for frosting)
- 340g (1.5 cups) unsalted butter, softened but cool
- 500g (4 cups) confectioners' sugar, sifted
- 30ml (2 tbsp) heavy cream
- 1 pinch fine sea salt
Instructions:
- Simmer 340g raspberries, 30g sugar, and 15ml lemon juice in a small saucepan. Note: Use medium heat to prevent burning.
- Cook 12 minutes until the berries have broken down and the liquid has thickened.
- Strain the mixture through a fine mesh sieve, discarding the seeds.
- Chill the reduction in the fridge until it is completely cold to the touch.
- Whisk 375g flour, 300g sugar, 12g baking powder, and 4g salt in your mixer bowl.
- Add 225g cubed butter and mix on low until the texture resembles coarse sand.
- Stream in 170g melted white chocolate while mixing. Note: This coats the flour particles in fat.
- Combine 240ml milk, 4 egg whites, and 10ml vanilla in a separate jug.
- Add the milk mixture to the flour in three stages, beating for 30 seconds after each until the batter is pale and voluminous.
- Divide the batter evenly between three greased and floured 8 inch pans.
- Drop teaspoons of the chilled raspberry reduction onto the batter.
- Use a toothpick to swirl the fruit until you see elegant pink ribbons.
- Bake at 350°F (180°C) for 35 minutes until a skewer comes out clean and the edges pull away.
- Beat 340g cool butter for 5 minutes until it looks nearly white and doubled in volume.
- Add 500g sifted confectioners' sugar one cup at a time.
- Mix in 170g melted white chocolate and 30ml heavy cream.
- Whip on high for 2 minutes until the frosting is glossy and air light.