A gloppy, meaty, cheesy brick served in a pool of sauce and with a mountain of fries: please meet the francesinha, the culinary pride and joy of the city of Porto. Today, restaurant billboards proclaim in many languages that they serve the best version in the world, revealing the genuine power of this artery-clogging combination that, incredibly, was originally conceived as a snack. We have to say it though: eating a francesinha is worth every last calorie. This dense sandwich, which is impossible to eat just with your hands, is often considered the lusophone version of the croque monsieur.

Matosinhos, a small city just north of Porto, is used to change. It has an industrial air to it, due to its 19th-century harbor, and its past prosperity was connected to the fish-canning sector, which peaked during World War II and declined from the beginning of the 70s. The numerous abandoned warehouses attracted nightlife during the 1990s, with clubs finding a fertile zone for noise. The completion of the long-delayed tidal pool, built by Portugal's starchitect, Alvaro Siza (who was born in the city), put it firmly on the map again after the project was delayed for decades. In January, the launch of the new, spiralling cruise ship terminal added to the contemporary design-y feel that has been developing on its otherwise rugged coastline.

There has always been a bit of a rivalry between the two main cities of Portugal, Lisbon and Porto, which is well illustrated by an old running joke among some tripeiros (the name given to the people of Porto): whenever someone asks what is the best thing about Lisbon they will reply, “The highway sign that says ‘Porto.’” But it’s a healthy rivalry for the most part – football aside. Lisboetas, Lisbon locals, in general even tend to recognize that the food might actually be better in Porto and its surroundings, especially traditional dishes. While Porto does not benefit from the same multicultural influences that helped shape Lisbon’s restaurant scene, it is home to some very talented cooks with a knack for doing so much with so little.