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

Combine sugar, powdered sugar, butter and cooking oil. Beat well, add eggs, beat again. Add remaining ingredients and mix well.

Drop by spoonfuls or roll into a ball the size of a small walnut. Put on a cookie sheet and flatten slightly with a fork dipped in sugar. Bake at 375 degrees for 10-12 minutes.