"The bifana is Lisbon’s quintessential street food, consumed by the hundreds every day in the busiest neighborhoods in town. It is a simple sandwich with thin slices of fried pork shank (the best venues fry the meat in pork fat) stuffed into a crusty roll. To enhance the flavors, some places add a good amount of mustard poured straight from the squeeze bottle or a few drops of piri piri (hot sauce). Bifanas do Afonso, on the famously steep Rua da Madalena, is one of the most popular venues for the egalitarian delicacy. Long queues are undeniable proof of the quality of the sought-after sandwiches, which have been served there for over 40 years." - Rafael Tonon