2 eggs
1/3 c. water
1/4 c. butter, soft
1 c. peanut butter
1 pkg. yellow or white mix
1 c. chocolate chips

Heat oven to 375 degrees. Beat eggs, water and butter, peanut butter and half the cake mix (dry) until smooth. Stir in remaining mix and chocolate pieces. Spread dough in greased and floured 11 x 15 inch pan. Bake 20 minutes. Cool, cut in squares. Drizzle frosting over top.