An Open Letter to Cookie Monster But first, let's see what's in the secret compartment today. Oh, it's a cookie dough flavored balance bar. For people who love cookies and pretending to be healthy. Dear Cookie Monster, here's the thing, man. You don't have a stomach. That's why when you put a cookie in your mouth, it crumbles up and then it just falls out of your mouth. But here's what fascinates me, Cookie Monster.