I've seen this recipe all over lately on the blogs around here. The cake mix sandwich cookies!
1 cake mix *most types work
1/2 cup butter, softened
2 eggs
Mix together and bake at 350 just until set and tops start to crack.
DO NOT OVERBAKE!
Let cool, then sandwich two cookies with desired filling, I used my buttercream icing.

The cookies are so moist, and taste like chocolate cake cookies!!! YUM!

I used some leftover colored icing I had sitting around, so mine were pink, purple, & yellow! My daughter took these to school today for her end of the year class party!