1 box yellow cake mix
2 eggs
1/3 c. water
1/4 c. softened butter
1 c. peanut butter
12 oz. pkg. chocolate chips

Beat with electric mixer 1/2 cake mix, eggs, water, butter and peanut butter until smooth. Stir in remaining cake mix and chips. Drop by spoonful onto ungreased cookie sheets. Bake 9 inches at 375 degrees.