Cake Mix Bar Cookies

1 box yellow cake mix
1 egg
1/2 cup oil
1/4 cup water
1 cup chocolate chips

Mix cake mix, egg, oil, and water until smooth.
Mix in chocolate chips.
Bake in greased 9x13 baking pan at 350 degrees for 20-25 minutes, until golden brown.
Cool and cut into squares.
Enjoy!!!