whoopie pies

From the Bower's Reunion Cookbook, contributed by Alfreda Fortier

1/2 cup shortening
1 cup sugar
2 egg yolks
2 cups flour
1 tsp. baking powder
1 tsp. baking soda
8 tsp. cocoa (RK says, "I use dutch process cocoa AND add a touch of vanilla."
1 cup milk

Cream together shortening and sugar. Mix in remaining ingredients. Bake 350° for 15 - 18 minutes.

Filling
1/2 cup shortening
2 egg whites
2 cups powdered sugar
Beat all together

*note from RK, I generally use 1/2 butter and 1/2 shortening in ANY recipe that calls for all shortening. Something about using that much shortening gives me the willies.