Bon Appetit Rectangular Baking Dish. This exciting new cookware line is made of cast aluminum coated with Dupont Platinum quality nonstick layers and with the exception of the baking dish and oval steak pan steel bottoms. The use of alumninum reduce the weight and ensures a perfect distribution of heat on the entire surface, with aluminum expenditure of energy. The steel bottoms allow use on all sources of heat, including induction, gas ceramic or electric ranges. Heat resistant Bakelite handles and knobs. Tempered glass lids.