Pâtisserie Deux Amis

You'll find yourself on Judd Street near King's Cross, where this small French pâtisserie does exactly one thing and refuses to compromise on it. The croissants here have that shattering, laminated exterior that only happens when someone's actually bothered to do the folds properly—none of that airy nonsense. Their éclairs and religieuses are textbook French, and the fruit tarts are the kind of thing that makes you wonder why everywhere else seems to get it so wrong. It's tight, focused, and genuinely good enough that locals queue for it.