FOR THE CAKE: – 3 & 1/4 cups (390g) cake flour – 1 & 1/4 teaspoons baking powder – 1/2 teaspoon baking soda – 1/2 teaspoon salt – 1 cup (226g) unsalted butter, softened – 2 cups (400g) granulated sugar – 4 large egg – 2 teaspoons vanilla extract – 1 & 1/4 cups (296ml) milk FOR THE FROSTING: – 2 & 1/2 cups (275g) confectioners’ sugar, sifted – 1/2 cup (113g) unsalted butter, softened – 2 to 3 tablespoons milk – 1 teaspoon vanilla extract/vanilla bean paste – sprinkles, for garnish