Take your favorite chocolate chip cookie dough and flatten out a handful. Place this on a greased skillet (or on a pan if you don't have a skillet). Take a graham cracker and break it in half. Place one half on the cookie dough and top with a chunk of a chocolate bar and marshmallows. Place the other half of the graham cracker over top and form another handful of cookie dough over the whole thing. (See slide show for descriptive photos.)
Bake in a preheated 350 degree oven for 12-15 minutes. It is going to be a LARGE cookie!
Serve with a tall glass of milk and make sure to share with a friend!