1/2 c. white sugar
1/2 c. powdered sugar
1/2 c. butter
1/4 c. oil
1 egg, well beaten
1/2 tsp. baking soda
1/2 tsp. cream of tartar
1/2 tsp. vanilla
2 1/4 c. flour

Mix first 5 ingredients well, add dry ingredients and mix well. Drop by spoon flatten with sugared glass. Bake at 350 degrees for 8 minutes.