Royal Icing Ingredients 3 cups confectioners’ sugar 1/4 teaspoon cream of tartar 2 egg whites, beaten Directions In a bowl, sift together confectioners’ sugar and cream of tartar. Using electric mixer, beat in 2 beaten egg whites for about 5 minutes or until mixture is thick enough to hold its shape. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Print (Opens in new window) Print Share on Tumblr (Opens in new window) Tumblr Email a link to a friend (Opens in new window) Email Like Loading... Related KitchenParty Ideas