1/2 c. shortening
1 1/2 c. sugar
1 tsp. vanilla
2 eggs
3 c. sifted all purpose flour
1 tsp. salt
1 tsp. baking powder
1 tsp. baking soda
1/2 c. cocoa
1/2 c. hot water
1/2 c. sour milk

WHOOPIE PIE FILLING:

1/2 c. hot milk
3 tbsp. flour
1/4 tsp. salt

Cool for a few minutes. 1/2 c. shortening 1 tsp. vanilla