Buttercream Frosting This frosting is great for sugar cookies or gingerbread people. This makes enough to frost 3 dozen cookies. Ingredients 4 cups powdered sugar 1/2 cup butter — don’t substitute margarine, now 3 to 4 tablespoons milk 2 teaspoons vanilla Combine all ingredients and beat at low speed, scraping bowl often, until fluffy (1 to 2 minutes).