Chez Alain Miam Miam

Alain Roussel — known to the entire 3e as 'Alain the Crêpe' — opened his stall inside Marché des Enfants Rouges in 2005 and has spent twenty years assembling exactly two things: galettes and the sandwich that has become a Paris food-tourism landmark. A baguette toasted on a panini press, organic Comté, mortadella, lettuce, herb pesto, mushroom spread, all built to order by Alain himself, hands moving while he chats with the queue. Vegetarian options work. The line — frequently 30 minutes deep on weekends — is part of the experience; locals walk the sandwich to nearby Square du Temple-Elie Wiesel and eat on a bench. There's a sit-down annexe on rue Charlot if you'd rather skip the queue.