DETROIT - A Detroit-area restaurant owner believes he has broken the world record for "largest hamburger commercially available.''

After 12 hours of preparation and baking, the 61-kilogram burger emerged Saturday at Mallie's Sports Bar and Grill.

The "Absolutely Ridiculous Burger,'' made with beef, bacon and cheese, was delivered on a 23-kilogram bun, The Detroit News and the Detroit Free Press reported. It sells for $350, and orders require 24 hours' notice.

Flipping the burger required three men using two steel sheets.

Owner Steve Mallie told The News he wanted to show that he has the biggest and best burgers.

Authenticating Mallie's claim could take a few weeks. His burger would outweigh the 56-kilogram burger made last year by Denny's Beer Barrel Pub, of Clearfield, Pa.