Gratin de cardons
Cardoons, the tall silvery cousin of the artichoke, are a Christmas vegetable in Lyon and the Dauphiné; market stalls on the Quai Saint-Antoine sell them in December, and the gratin goes on the table at the réveillon dinner. The stalks taste gently of artichoke and celery and turn meltingly soft under a nutmeg béchamel. Lyon cooks often add bone marrow; this version leaves it out and uses vegetable stock in the sauce. Gruyère is usually made with animal rennet, so choose a vegetarian alternative if needed. If you cannot find cardoons, celery hearts work, though they cook faster. Chef's tip: drop each peeled stalk straight into lemon water; cardoons blacken within minutes in the air.










