1 c. powdered sugar
1 c. granulated sugar
1 c. butter
1 c. vegetable oil
2 eggs
4 c. and 5 tbsp. flour
1 tsp. salt
1 tsp. baking soda
1 tsp. cream of tartar
1 tsp. vanilla

Cream sugars, oil and butter. Add eggs; mix well. Add sifted dry ingredients. Cool dough. Roll in small balls. Place on ungreased cookie sheet. Flatten with bottom of a glass dipped in granulated sugar. Bake at 350 degrees for 10 to 12 minutes.