Creamy Butter Frosting - cooking recipe

Ingredients

6 Tbsp. butter, softened
1 egg
milk (as much as needed)
4 1/2 to 4 3/4 c. sifted powdered sugar
1 1/2 tsp. vanilla

Preparation

In a small mixing bowl, beat butter until light and fluffy. Gradually add about half of the powdered sugar; beat well.
Beat in vanilla and egg.
Gradually beat in remaining powdered sugar. Beat in some milk, if necessary, to make frosting of spreading consistency.
Cover; store in refrigerator.