1 16 ounce package powdered sugar (4 cups) 3 tablespoon meringue powder* ½ teaspoon cream of tartar ½ cup warm water 1 teaspoon vanilla
*Tip:
Look for meringue powder in the cake decorating aisle of hobby and craft stores.
**Tip:
To use Royal Icing as a glaze, stir in additional warm water, about 1/2 teaspoon at a time, until icing reaches a thin spreading consistency.
