2 eggs
3/4 c. sugar
3/4 c. packed brown sugar
1/2 c. peanut butter
1/3 c. butter
1 c. flour
2 tsp. vanilla
1 tsp. baking soda
1/2 - 1 pkg. semi-sweet chocolate chips

Preheat oven to 350 degrees.

Mix all ingredients except chocolate chips and spread into an ungreased 9x13 pan. Sprinkle with chocolate chips and bake for 5 minutes. Remove from oven. Swirl the chips. Bake an additional 20 minutes.