Yield: 12 cupcakes Ingredients Batter 3 ounces (85 g) unsweetened cocoa powder 2.5 ounces (70 g) cake flour 6 ounces (170 g) unsalted butter, room temperature 8 ounces (225 g) granulated sugar 4.2 ounces (120 g) cup sour cream 3 large eggs 1/2 teaspoon baking powder 1/4 teaspoon salt 1 teaspoon vanilla extract Filling 4 […]