1 stick of margarine or butter
1 lb of powdered sugar
½ tsp vanilla
¼ cup of milk
Cream butter. Add all other ingredients. You may need to add more milk to get a good consistency. Whip for a couple of minutes (the whipping really is the secret to making it nice and creamy).
If you want to make chocolate frosting, leave out the vanilla and add about 3 tbsps of cocoa powder. You can put in more or less depending on how dark you want your chocolate.
Add food coloring after frosting has been whipped.
Frosting makes great graham cracker sandwich cookies, sugar cookies and cakes.