A Little HistoryCharles Ranhofer, chef of Delmonico's in New York, published The Epicurean in 1894 as a complete record of the restaurant's repertoire, which is why a humble organ meat appears here under a French title: gras-double is the French butcher's term for the thick, fatty first stomach lining of beef, and au gratin refers to the browned crust rather than to any particular dish. Tripe was cheap, universally available and, in nineteenth-century kitchens, treated as a serious ingredient rather than a curiosity — Ranhofer gives a run of tripe preparations in sequence, à la Tartare, Lyonnaise, and this Parmesan gratin, each one a standard sauce or garnish applied to the same base. The Parmesan and tomato combination points to the Italian influence already present in French professional cooking of the period; a dish built this way, with cheese, crumbs and brown sauce over an inexpensive cut, was the kind of thing that let a restaurant put a low-cost item on a long menu without lowering the tone.