1 c. brown sugar
1 c. white sugar
1 c. butter, soft
1 c. oil
1 egg
1 tsp. vanilla
1 tsp. salt
1 tsp. cream of tartar
1 tsp. baking soda
4 c. flour
1 tbsp. milk
12 oz. chocolate chips

Mix together. Chill dough. Shape into balls. Place on ungreased cookie sheet. Press with sugar.

Bake at 350°F for 10 minutes. Watch closely. Cookies are done even though they are still whitish.