3tablespoonsmeringue powderfound in cake decorating aisle of craft/hobby store
½teaspooncream of tartar
1teaspoonpure vanilla extract
In a large mixing bowl, mix powdered sugar, meringue powder, and cream of tartar. Add water and vanilla and beat with an electric mixer on low until combined. Beat on high for 7-10 minutes or until icing reaches a stiff piping consistency. If not using right away, cover the bowl with a damp paper towel and then plastic wrap; chill up to 48 hours.