Versatile Icing

Directions

1. 1
   Combine the melted butter and 1 cup powdered sugar.
2. 2
   Whisk until the whole mixture is crumbly.
3. 3
   Add about a tablespoon of milk and whisk until smooth (it should take a few minutes).
4. 4
   Add the remaining powdered sugar with the milk (you may need more or less milk, depending on the humidity).
5. 5
   Add a few drops of food coloring, if desired.
6. 6
   It should be a thick enough to stay on a cookie if iced, and not run off.