Gratin de poireauxLeek gratin
Gratin de poireaux is the winter comfort dish of northern France, from Picardy to Flanders, where leeks grow through the cold months and turn up at almost every family supper. The leeks are gently braised in butter until sweet, laid in a dish, covered with a nutmeg béchamel and grated Comté and baked until golden. Comté is made with animal rennet and raw milk; use a vegetarian or pasteurised hard cheese if needed. The common mistake is leaving grit in the leeks; wash them well between the layers. Chef's tip: braise the leeks covered with a splash of water before baking; they turn silky and never squeak.




