Le Café Caché
Inside the courtyard at 36 Rue de Montmorency, 3ème
Push past the heavy wooden door of Paris's oldest house (yes, really — built in 1407) and slip into the cobblestone courtyard. The tiny café at the back has no sign, no Instagram presence, and the best café crème I've ever tasted. The owner, Mathieu, roasts his own beans in a closet-sized room upstairs.
Best time to visit
Tuesday through Friday mornings, before 10am. On weekends, a small line forms — but even that feels charming.