4 Tablespoons vegetable shortening
1 teaspoon vanilla extract
4 cups confectioners' sugar
2-4 tablespoons milk
In a large bowl, cream together the butter, shortening, and vanilla
Blend in the sugar in two batches, beating well after each addition
Beat in the milk, adding until desired consistency is reached and continue mixing on medium high speed until light and fluffy.
This printable recipe from StartingtoSimmer.blogspot.com