While the francesinha might be Porto's most famous local dish, this slow-roasted pork loin sandwich is my favourite, as served at a Casa Guedes in the downtown area. (You'll find them at lots of places though.)

The most famous and iconic dish in Porto is undoubtedly the Francesinha. This legendary sandwich is a decadent, multi-layered masterpiece consisting of toasted bread filled with various meats like wet-cured ham, linguiça (smoke-cured pork sausage), fresh sausage, and steak. The entire sandwich is then smothered in melted cheese and drenched in a signature hot, thick tomato-and-beer sauce that is unique to every restaurant. It is traditionally served with a side of French fries and often topped with a fried egg. Another deeply historical dish is Tripas à Moda do Porto (tripe stew), which dates back to the 15th century. Legend has it that the citizens of Porto gave all their good meat to sailors for the Age of Discovery, leaving only the tripe for themselves—an act of sacrifice that earned them the nickname "Tripeiros." While the Francesinha is the modern "must-try" for tourists, the tripe stew remains the soul of the city's culinary heritage.