2 eggs
1/4 cup  margarine, softened
1/3 cup water
1 cup peanut butter
1 package yellow cake mix
1 package (12 ounces) semi-sweet chocolate chips

Beat eggs, water, margarine, peanut butter, and half of cake mix until smooth.

Stir in remaining cake mix and chocolate chips.

Dough will be stiff.

Spread in greased and floured 13x9x2-inch pan.

Bake at 375° for 20 minutes or until toothpick inserted in center comes out clean.

Cool (or not).

Cut into bars.

Makes about 20 bars.