The complete guide to the Francesinha: origins, ingredients, the secret sauce and the three restaurants where you can eat it properly in Porto.
A Francesinha is a hot sandwich native to Porto, filled with layers of cured meats (linguiça, ham, steak), covered with melted cheese and drenched in a spiced beer-and-tomato sauce. It packs around 1,500 calories and is best eaten at lunch. Every restaurant in Porto claims to make the best one — the debate is very much alive among locals.