Cake Mix Cookies

 1/2 c. melted butter cooled (browned for extra flavor)
2 eggs (I'ved used 1 egg + 1 yolk with good results)
1 1/2 tsp vanilla
1/2-3/4 c. chocolate chips (or other mix-ins)
1 box cake mix

Mix all ingredients together.  Bake at 350 for 10-12 min.