1 c. butter
2 eggs
3/4 c. oil
1 tsp. baking soda
1 tsp. cream of tartar
1 c. sugar
1 c. powdered sugar
4 c. flour
1 tsp. vanilla

Mix well. Chill, make into balls the size of walnuts or larger. Flatten with glass dipped in sugar.

Bake at 350°F for 8-10 minutes.