1 pound box of confectioners sugar (or 3 3/4 cup)*
½ teaspoon cream of tartar
½ teaspoon vanilla
Using a glass or stainless steel bowl beat egg whites in one cup powdered sugar; don't measure just pour in about a cup and remaining ingredients until smooth and creamy. Add remaining box and beat until stiff peaks form about 5-7 minutes. Cover with plastic wrap until ready to use. You will need an icing bag and tip to decorate gingerbread men. When using icing keep a damp dish towel over bowl. This icing sets up quickly.
*I find the box more accurate
