3/4 c. butter
1 1/2 c. sugar
2 eggs
1/2 tsp. vanilla
1 1/2 c. milk
3 c. flour
3/4 c. cocoa
3/4 tsp. baking powder
2 1/4 tsp. baking soda
1/2 tsp. salt

In large bowl, cream butter, sugar, eggs and vanilla. Add milk slowly and mix well. Combine dry ingredients and sift into batter. Drop batter by teaspoon on greased cookie sheet and bake 15 minutes at 350 degrees. Cool, then fill with whoopie pie filling.

1 c. milk
6 tbsp. flour
1/2 c. shortening
1/2 c. butter
1 c. sugar
2 tsp. vanilla

Cook milk and flour in saucepan until thickened. Cool, and beat in remaining ingredients. Beat until filling is light and fluffy.