Step 1
In a bowl, with mixer at medium speed, beat powdered sugar, meringue powder and warm water until stiff peaks form, about 5 to 7 minutes.
Step 2
If icing is too thick, add a couple of drops of water. If icing is too thin, add additional powdered sugar; continue beating until desired consistency.
Step 3
Tint icing with desired food coloring. Using pastry bag with decorator tip, decorate as desired.