"Cachorrinho is the Porto answer to the hot dog. Thin crusty bread is stuffed with fresh sausage, grilled, brushed with a spicy sauce (often made with piri piri and butter), and cut into bite-sized pieces. A lot of restaurants offer newer takes on the simple dish, but stick with tradition at Cervejaria Gazela, a legendary snack bar opened in Praça da Batalha in 1962. Be sure to order some french fries and a fino (tap beer) to go alongside." - Rafael Tonon