Luscious Buttercream Frosting Be The First To Review By Anonymous recipe Silky, smooth and satiny – simply luscious! Luscious Buttercream Frosting Ingredients 4 cups powdered sugar1/4 cup milk1/2 cup LAND O LAKES® Butter, softened*2 teaspoons vanillaFood color, if desired Instructions 1 Combine all ingredients in large bowl. Beat at low speed until well mixed. Increase speed to medium; scraping bowl often, until light and fluffy . Tint frosting with food color, if desired.