Ox Tail (beef tail)
Oxtail (occasionally spelled ox tail or ox-tail) is the culinary name for the tail of cattle. Formerly, it referred only to the tail of a steer. An oxtail typically weighs 7 to 8 lbs. (1–1.8 kg) and is skinned and cut into short lengths for sale.
Oxtail is gelatin-rich meat, which is usually slow-cooked as a stew or braised. It is a traditional stock base for a soup. Traditional preparations involve slow cooking, so some modern recipes take a shortcut using a pressure cooker. Oxtail is the main ingredient of the Italian dish coda alla vaccinara (a classic of Roman cuisine). It is a popular flavor for powdered, instant and premade canned soups in the United Kingdom and Ireland.