The French language has a knack for making every single food sound fancy, have you noticed? Béchamel, au poivre, gratin, and en croute are just a few terms/dishes that prove it. At its root a béchamel is just an ordinary white sauce sans cheese. Au Poivre means black pepper encrusted. A gratin is simply a dish with a crust of melted cheese. And en croute means to wrap in puff pastry.