1 boxed cake mix, any flavor
1 stick butter, softened
3-4 tsp water
Any mix-ins or flavorings desired
Soften the butter, and add the egg. Beat 3 minutes until the egg and butter are fluffy and light yellow. (You don’t have to do this step, but if you do, the cookies will be fluffier.)
Add the cake mix and mix until just combined. If you want to add anything special (nuts, chocolate chips, etc.), do it now and mix until combined.
Add water 1 tsp at a time until the dough reaches the consistency you’d like.* It should be stiff but not dry.
Bake at 350 for 9-12 minutes (add 1 minute if dough was refrigerated). DO NOT BE FOOLED – the cookies will not look done, and they will be pretty squishy. (If you are using a light-colored cake mix like white or yellow, watch for browning. Once you see the slightest bit of brown on the cookies, take them out of the oven immediately.) Let them sit on the hot pan for several minutes before carefully moving to a cooling rack. Cool completely.
The above cooking time is for a soft, chewy cookie. If you prefer more crispy cookies, bake 13-14 minutes.