I love makin whoopie ... pies, that is! I made these 4 Christmas last yr and added green food coloring 2 the cream cheese frosting! Not only were they delicious, but also beautiful and festive as well as simple.
Mix cookie mix, cocoa, butter, sour cream, food color and egg in bowl until soft dough forms.
Drop cookie dough onto ungreased cookie sheet 2 inches apart with a cookie scoop
Bake at 375 degrees F for 8 to 9 minutes or until set. Cool 2 minutes; remove from cookie sheet to wire rack. Cool completely, about 15 minutes.
While cookies are cooling, make frosting. Mix butter, cream cheese, confectioners sugar and vanilla extract until smooth.
When cookies are completely cooled, assemble whoopie pies by putting frosting on the flat side of a cookie and sandwiching another flat cookie bottom against the exposed frosting. It should look like a little sandwich, like in the picture.