Dual wrapper method of cooking a prepared meat product

The method of cooking a hamburger, comprising the steps of:

• placing an inner metal foil wrapper about a meat patty to encompass the meat patty on all sides;
• positioning the wrapped meat patty between a pair of bun halves;
• placing an outer metal foil wrapper about the bun halves and wrapped meat patty;
• placing heated metal jaws in removable engagement with the outer wrapper but only in locations where it directly overlies the inner wrapper containing said meat patty, so as to transmit heat energy through both of the wrappers and into the meat patty, until the meat patty is cooked;
• and
• then removing both wrappers;
• whereby the meat patty, while it is being cooked, is shielded from intimate contact with the bun halves, and the inner wrapper is effective to restrict the outward flow of heat energy and moisture from the meat patty into the bun halves thereby causing said patty to cook more rapidly.