These Raspberry and White Chocolate Cupcakes are made from buttery vanilla cupcakes filled with white chocolate and raspberries and piped with a creamy white chocolate frosting.
Preheat the oven to 180°C (350°F) and line 24 cupcake liners into two 12-hole cupcake pans.
Add the butter and castor sugar to a bowl of a stand mixer fitted with a paddle attachment. Beat at medium-high speed until creamed, about 3 minutes.
Add the eggs to the creamed butter and sugar mixture one at a time, be sure to scrape down the sides of the bowl with a rubber spatula between each addition. Add the vanilla and beat again.
Sift together the flour, baking powder, and salt into a large mixing bowl.
Add the wet and dry ingredients to the cupcake batter by alternating between the two. Starting with the flour and ending with the sour cream.
Add the raspberries and white chocolate to the cupcake batter and mix through using a rubber spatula.
Use an ice cream to fill the cupcake liners two-thirds of the way up the liner. Bake in a preheated oven for 20 minutes or until a light golden brown and a cake tester inserted into the center of the cupcake comes out clean. Cool completely on a wire rack.
Raspberry Puree
In a small saucepan set over medium heat add the fresh raspberries, sugar, and lemon juice. Allow the fruit to soften and the sugar to melt. Stir occasionally with a spatula and press the fruit against the sides of the saucepan to help them break down if needed.
Once the sugar is melted and the purée has thickened, allow the mashed raspberry purée to cool to room temperature. Add this to a piping bag.
White Chocolate Buttercream
Add the softened butter to a bowl of a stand mixer fitted with a whisk attachment. Beat at medium-high speed until the butter is light and fluffy.
Add the icing sugar to the whipped butter and beat again at medium speed until combined and light and fluffy.
Add the chopped chocolate and cream to a microwave-safe bowl and heat this gently in the microwave until just melted. Stirring every 10 seconds.
Add the melted white chocolate mixture to the frosting and beat for about 2 minutes until light and fluffy.
Use an apple corer to remove the center of each cupcake and fill this with the raspberry puree.
Add the frosting to a piping bag fitted with your chosen nozzle and pipe swirls of frosting onto each cupcake. Decorate with fresh raspberries and pieces of white chocolate. Serve and enjoy.