Has this ever happened to you?

You order a plate of food, and it lands on your table. Even before taking your first bite, you know that if you eat this there’s a good chance it could kill you.

But you eat it anyway because it just looks so good.

That’s how I felt about my first francesinha—Porto’s fantastic, heart-stopping, gut-wrecking sandwich. It’s something that no one should leave Porto without trying, but it will provide your daily requirement of calories in one meal. So, plan your day around it.

So what exactly is this sandwich, and where can you find the best francesinha in Porto?