Ingredients for 12 cupcakes
3/4 cup (107g) all-purpose flour*
3/4 cup (98g) cake flour*
1 1/2 tsp baking powder
1/4 + 1/8 tsp salt
1/2 cup (113g) unsalted butter, softened
3/4 cup + 2 Tbsp (180g) granulated sugar
Seeds of 1 vanilla bean
1 large egg
2 large egg whites
1 tsp vanilla extract
2/3 cup (140ml) milk (anything but skim)
Vanilla Bean Buttercream Frosting
3/4 cup (170g) butter, nearly at room temperature (preferably 1/2 cup unsalted and 1/4 cup salted)
Seeds of 1 vanilla bean
3 cups (380g) powdered sugar
2 Tbsp (30ml) heavy cream
1/2 tsp vanilla extract
Read the Instructions here