I'm guessing you have in mind something more like a flourless chocolate cake, but we make something very close to this recipe:
http://www.foodnetwork.com/recipes/chocolate-peanut-butter-no-bake-cookies-recipe.html
No flour, just oats. Has a distinct chewiness to it, which I crave but others may not love. Loaded with calories and fiber, so I like to bring these to friends who've just had babies...