Grub Street has a bone to pick with you, Philly. Actually, it’s a couple of different bones. And for all intents and purposes, it’s really not so much the bones themselves that we’re interested in. Rather it’s the rich and tasty goop inside. From the very dawn of civilization, humans — well, the meat eaters amongst us anyway — have voraciously sought out the gooey innards of bones as a means of sustenance after the spoils of the hunt were consumed. In today’s more civilized settings, it’s a highly sought after delicacy. Here we’ve put together a selection of some of its more interesting uses by local chefs. Lets us know which one is your favorite.