On May 12 and 13, respectively, Back Forty and Savoy celebrate spring with a communally seated calçotada—a traditional Catalonian onion orgy of sorts, and as good an excuse as any to eat with your hands and drink to excess. On the $60 menu: grilled leeks (filling in for calçots), lamb chops, sausages, crema Catalana, and all-you-can-drink rosé. Think of it as an old-fashioned Joseph Mitchell beefsteak, except the guest of honor is a vegetable.