2	C	Powdered sugar
2	tbsp	Butter
1		Egg white
1/2	tsp	Vanilla
	dash	Salt
		Food coloring [optional]

Combine all ingredients, except food coloring, and beat with mixer until smooth. If too thin, add, in small amounts, additional powdered sugar. If too thick, add by the drop, water or milk. Color if desired. Makes 1 cup.