1/2 c. vegetable oil
1 c. sugar
1/2 c. cocoa
1 c. milk
1 egg
2 c. sifted flour
1 1/2 tsp. baking soda
1/2 tsp. salt
1 tsp. vanilla
Filling (recipe follows)

Combine all but filling ingredients and beat until well mixed. Drop on ungreased cookie sheet from heaping teaspoonfuls. Bake 7 minutes in 325 degree oven. Cool completely before spreading filling between two cookies. Wrap cookie sandwiches in plastic wrap. Makes about 40 cookies. Refrigerate or freeze.

FILLING:

2 egg whites
2 tsp. vanilla
1/4 c. flour
1/4 c. milk
1 c. shortening
1 (1 lb.) box confectioners' sugar

Beat all but sugar together, then add sugar and beat well.