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.

Two top chefs have just seven days to make culinary history as they try to replicate the secret recipes for two mighty KFC staples - the Zinger Burger and KFC's legendary original chicken

Two top chefs have just seven days to replicate one of Britain's favourite chocolate snacks. Can they make a chocolate mallow biscuit that's anything like the real thing?

Michelin-star chefs Daniel Clifford and Claude Bosi attempt to make Shreddies from scratch. They must figure out how to create the popular cereal's famous lattice pattern and layered structure.

The mighty Snickers bar's combination of chocolate, peanuts, caramel and nougat may sound simple, but trying to recreate it drives two fine-dining chefs to distraction

Fred Sirieix challenges two leading chefs to replicate Quality Street's three most popular sweets - the purple one, a strawberry delight, and a green triangle.

Fred Sirieix challenges top chefs to replicate popular snacks. This time, it's the lunchbox legend cheese Quavers. Are the delicate texture and cheesy taste just too hard to copy?

Fred Sirieix challenges chefs Jason Atherton and Francesco Mazzei to make a perfect replica of Domino's pepperoni passion pizza, in a contest that soon turns into England vs Italy.