1 1/2 c. sugar
1/4 c. shortening
1/2 c. cocoa
1 egg
3/4 c. sour milk
1/2 tsp. cream of tartar
1/2 tsp. baking soda
1 tsp. salt
2 c. sifted flour
1 tsp. vanilla

Cream together sugar and shortening. Mix in cocoa and egg. Sift dry ingredients together and add alternately with sour milk. Add vanilla and mix well. Drop by tablespoon onto greased cookie sheets. Bake about 12 minutes in preheated 375 degree oven. Cool and spread with filling.

FILLING:

1/2 c. milk
2 1/2 tbsp. flour
1/2 c. soft shortening
1/2 c. sugar
Pinch of salt
1 tsp. vanilla

Mix milk and flour. Cook to a thick pate. Cool, whip and add shortening, sugar, salt and vanilla. Beat until fluffy. Spread filling on bottom of cookies and put together like sandwiches.