Name: Mini Vanilla Bean Cupcakes with Vanilla Buttercream Frosting
Prep time: 30 minutes
Cook time: 20 minutes
Yield: 24 cupcakes
Ingredients: 1 1/4 cups all-purpose flour; 1 cup cake flour; 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/2 teaspoon kosher salt; 1 cup sour cream; 1/2 cup milk; 4 large egg whites, at room temperature; 1/2 cup (1 stick) unsalted butter, at room temperature; 1 1/3 cups sugar; 1 vanilla bean, seeds scraped; 2 teaspoons pure vanilla extract; 1 cup (2 sticks) unsalted butter, softened and cut into cubes; 4 cups confectioners’ sugar; 1 tablespoons heavy cream; 2 teaspoons pure vanilla extract; Pinch of salt; Sparkling sugar, for garnish