1/2 c. BUTTER
1/2 c. oil
1/2 c. sugar
1/2 c. confectioners' (10X) sugar
1 tsp. vanilla
1 egg
1/2 tsp. salt
1/2 tsp. cream of tartar
1/2 tsp. baking soda
2 c. flour

Mix well. Drop on ungreased cookie sheets and bake at 350°F for APPROXIMATELY 15 minutes.