Royal Icing - cooking recipe

Ingredients

3 egg whites
1 (16 ounce) package powdered sugar, sifted (about 4 3/4 cups)
1 teaspoon vanilla
1/2 teaspoon cream of tartar

Preparation

In a large mixing bowl combine egg whites, powdered sugar, vanilla, and cream of tarter.
Beat with an electric mixer on high speed for 7 to 10 minutes or till very stiff.
Use at once, covering icing in bowl at all times with wet paper towel to prevent from drying.