World's Biggest Hamburger Takes 12 Hours to Cook 7.29K Richard Lawson 06/07/10 02:15PM Filed to: Necessary THings Necessary THings Food Hamburgers Australia Here's a little news that ought to put starving people the world over in good spirits this blah Monday: an Australian cafe has made the world's biggest hamburger. It's 178lbs and costs $1500. It takes four men to flip. [Reuters]