Worcestershire sauce
The steak is cut or pounded thin so that it will cook rapidly. It is seasoned with salt and pepper, quickly sautéed in butter, and set aside. A sauce is prepared from the pan juices with various flavorings. The three New York city recipes from 1953 use few ingredients besides salt, pepper, and butter: brandy, sherry, chives (Sherry-Netherland); chives, dry mustard, lemon juice, Worcestershire sauce (Drake); chives, parsley, Worcestershire sauce (Colony). Only the Sherry-Netherland recipe explicitly calls for flambéing. Other recipes may use chives, Worcestershire sauce, mustard, thinly sliced mushrooms, shallots, cream, truffles, meat stock, or commercial steak sauce. The sauce is flambéed with brandy, dry sherry, or Madeira, and poured over the steak.