Cake Cookies

1 box cake mix (of your choice)
1 lg egg
1/4 cup oil
1 tsp vanilla
1/4 cup water
1 cup anything you like in cookies (optional)

Mix together cake mix, egg, oil, water.  Stir in goodies (optional).  Drop by spoon on greased cookie sheet.  Bake at 350 for 15 mins or until done.