evered by both professional chefs and home cooks since its 1925 debut, Le Creuset's classic French cookware is prized for its utilitarian good looks, unsurpassed heat retention, and lids that create an even "blanket" of heat. Cast iron is clad in smooth, vitrified porcelain (here in kitchen-friendly Cerise), rendering each piece impervious to acid, alkali, odors and stains.