Many ask for a good cookie frosting and that is not my area of expertise. However I did receive this one from King Arthur Flour and thought I would pass it on.
2 1/4 cups confectioners' sugar, sifted
2 tbsp light corn syrup
1 1/2 to 2 tbsp + 1 tsp milk
food coloring, optional
Mix all the ingredients together, except food coloring, stirring until smooth - a fork works fine.
The glaze should be thick but soft enough to "settle" when you spread it. If glaze is too thick, dribble in another teaspoon of milk, 1/2 teaspoon at a time.
Stir in food coloring if desired. Gel colors work best.
Yield: 2/3 cup
Tip from the KAF bakers: