To prepare a cool whipped frosting recipe, first you need to prepare the frosting. First, you will need the following ingredients: 1 cup powdered sugar 2 tablespoons butter 1 teaspoon vanilla 2 teaspoons milk 1 tablespoon vanilla extract Instructions: In medium mixing bowl, beat the butter and sugar with an electric mixer on medium speed until fluffy. Add the vanilla and beat for an additional 30 seconds. Gradually add the egg whites, beating after each addition until stiff peaks form. Fold in the flour and mix just until combined. Spoon frosting into cooled cupcakes and serve.