Royal Icing Recipe

As always when working with egg whites, make sure that all utensils are free of grease.
Royal Icing or glaci royal is made by beating together sugar and egg whites. Working with royal icing is the most important aspect of cake decorating.
Beat together water and meringue powder or egg whites. Sift together powdered sugar and cream of tartar. Place all ingredients into a mixing bowl. Beat 7 to 10 minutes or until icing holds a strong peak.

It is almost impossible to specify the exact amount of sugar that your recipe needs as it depends on the size of the egg whites as well as the moisture content of your powdered sugar.

Keep frosting covered with a damp cloth at all times to keep it from drying out.