1 c. butter
1 c. oil
1 egg
1 tsp. vanilla
2 c. Rice Krispies
1 c. white sugar
1 c. brown sugar
3 c. flour
1 tsp. cream of tartar
1 tsp. baking soda
1 tsp. salt
2 c. oatmeal
2 c. chocolate chips
Walnuts, optional

Mix first 7 ingredients together. Mix last 6 ingredients together. Combine both together. Roll into balls and press down. Bake 350 degrees for 12 minutes. Makes about 6 dozen.