Beef shank, one of the toughest cuts on the entire animal, is cross cut into smaller sections with a marrow bone in the center of the meat. Osso Bucco translates to "bone with a hole" in Italian. This is honestly one of the best cuts which most folks don't regularly cook. The extensive connective tissue throughout the muscles will eventually cook down into soft, delicious flavors and textures which act almost like a natural sauce for the meat. Slow, low, and wet cooking are the key to turning this flavorful cut into something spectacular.