Manuel Azevedo and Francisco Moreira, now both in their 70s, have been friends since childhood. Such a close connection has afforded them the trust and togetherness required to run O Buraco, the restaurant in Porto that the duo have presided over like generals for almost 50 years. In fact, it was right after completing his military service that Manuel, a native of Marco de Canaveses, a city within the greater Porto municipality, came to Porto proper in search of work. “I picked up the newspaper, saw the ad, applied and was hired as a waiter,” he tells us. On February 4, 1971, he entered O Buraco (“The Hole” for the first time; he hasn’t left since.

Forget the famous francesinha. The best sandwich in Porto – arguably in the country – can be found in a little 1970s tile-lined eatery; the unremarkable interior belies the iconic status of its most celebrated dish. Served up on the corner of Praça Poveiros, a square named after the fishermen from the storied maritime city Póvoa de Varzim, located just north of Porto, the sandes de pernil (roast pork sandwiches) are a curious joy to watch being assembled as well as, of course, to eat. One by one, roast pork legs are slowly cooked in the huge oven in the kitchen behind the bar of Casa Guedes. They are then served directly from the roasting tray by the owner himself, Mr. Cesar.

Seating around only 20 people, Taberna dos Mercadores is a microcosmic reflection of contemporary Porto: a mixture of high-concept design and traditional food. From a design perspective, the focal point of the small yet comfortable dining room is the ceiling, where white metal supports create the outline of a false dome. Although sculptural in nature, the distinctive design is not merely ornamental but also practical: it doubles as a wine rack, cradling neatly stacked rows of bottles. Wine buffs will be satiated at the diverse but humble selection on offer here, which mainly originate from the Douro valley, the sumptuous growing region that extends from Porto along the Douro River all the way to the eastern border with Spain.