A Canadian chef, Ted Reader, made a huge hamburger, weighing 268 Kg (590 pounds)! He put the burger together at Yonge-Dundas Square in Toronto, in an attempt to get into the Guinness Book of World Records. The previous heaviest burger weighed only 84 kgs (185.8 pounds).
The award-winning chef used a specially designed grill with a built-in forklift mechanism designed to flip the oversized culinary creation.
Reader says it took six hours to cook the behemoth of a burger, starting off with a patty weighing 139 kilos. The grilled patty was then nestled in a 48-kilogram bun, dressed with lettuce, cheese, tomatoes, red onions, pickles and barbecue sauce.
An auction was held and it also raised $8,500 to benefit a camp program, Camp Bucko, for children with burn injuries. (source)