1 c. butter
1 c. peanut butter
1 c. sugar
1 c. brown sugar
2 eggs
1 tsp. vanilla
2 c. flour
1 tsp. baking soda
1 (6 oz.) pkg. chocolate chips

Blend butter, peanut butter, and sugars. Add eggs, one at a time; add vanilla. Sift dry ingredients. Stir in chocolate chips. Bake at 325 degrees for 15 minutes.