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

Cream together first 4 ingredients. Add sour milk. Sift dry ingredients together, mix into creamed ingredients. Drop by teaspoons onto well greased baking sheet. Put a little sugar on top of each cookie before baking. Bake at 400 F. for 8 to 10 minutes.