Easy Cream Cheese Frosting

Cream Cheese Frosting
6 ounces cream cheese
1/2 cup margarine or butter, softened
2 teaspoons vanilla
4 1/2 - 4 1/3 cups powdered sugar, sifted (I use a fine strainer in place of a sifter)

In a bowl, beat cream cheese, margarine or butter, and vanilla until light and fluffy. Gradually add 2 cups of the powdered sugar, beating well. Gradually beat in enough of the remaining powdered sugar to make frosting of spreading consistency. Store cupcakes in the refrigerator after icing them.