1 c. oil
1 c. butter
1 c. white sugar
1 c. powdered sugar
2 eggs
4 c. + 4 tbsp. flour
1 tsp. vanilla
1 tsp. salt
1 tsp. baking soda
1 tsp. cream of tartar

In a large bowl cream sugars, oil and butter until light and fluffy; blend in eggs. Add the dry ingredients to the first mixture. Chill dough for at least 3 hours. Preheat oven to 350 degrees. Roll chilled dough into balls. Flatten with a glass that has been dipped in 1/4 cup white or colored sugar. Bake cookies for 10 minutes. Makes 4 dozen cookies.