Lemon Cream Frosting

Description
This recipe came from an estate sale. I obtained it when I purchased the family collection from the Keller Estate in Arlington, Texas in 1994.
 * Contributed by Catsrecipes Y-Group

Ingredients

 * ¼ cup unsalted butter softened
 * 1 pound icing sugar
 * ¼ cup lemon juice
 * 2 tablespoons grated lemon rind
 * shredded lemon rind

Directions

 * 1) Beat butter until fluffy.
 * 2) Beat in icing sugar alternately with juice until smooth and spreadable.
 * 3) Fold in grated rind then spread evenly over top of cake.