The two types of ossobuco are a modern version that has tomatoes and the original version which does not. The older version, ossobuco in bianco, is flavoured with cinnamon, bay leaf, and gremolata. The modern and more popular recipe includes tomatoes, carrots, celery, and onions; gremolata is optional. While veal is the traditional meat used for ossobuco, dishes with other meats such as pork have been called ossobuco