1 pkg. yellow cake mix (pudding-in type)
1/3 c. butter, melted
1 egg
1 c. (1/2 of 12 oz. pkg.) miniature semi-sweet chocolate pieces

OR:
1 pkg. chocolate cake mix (pudding-in type)
1/3 c. butter, melted
1 egg
1 c. peanut M & M's, halved or 1 c. Reese's peanut butter cups

In large mixing bowl combine cake mix, butter, egg and 1/8 cup water; mix well. (Dough will be stiff!) Stir in chocolate pieces (or M & M's or peanut butter chips). Drop by rounded tablespoon onto an ungreased cookie sheet. Bake at 375 degrees for 8 to 10 minutes. Can easily be doubled and use full package of pieces.