In a cook off at the KitKat factory, two top chefs compete to make the perfect replica of the chocolate-covered wafer bar, before being judged by the workers and bosses behind the real thing.

Two top chefs compete to replicate a packet of pickled onion flavour Monster Munch. After spending weeks on their recipes, the rivals compete in a cook-off, judged by experts.

Fred Sirieix challenges two Michelin-starred chefs to recreate Burger King's Whopper and fries. They also compete to deliver their burgers as quickly as possible.