Slyman's is a working-class diner on St. Clair Avenue, opened in 1964 by Lebanese immigrants and never expanded beyond the original counter and dining room. The menu has plenty of other options — eggs, pancakes, sandwiches — but the corned beef is what people come for. The brisket is brined for ten days and hand-sliced to order; a single sandwich easily feeds two unless you have a very serious appetite.
Open weekdays for breakfast and lunch only — Slyman's closes at three and stays closed on weekends. Cash and card both accepted. Expect a line; the queue moves fast.