This is almost certainly the World's largest homemade cheeseburger. That is, until someone sees this video and decides to make a larger one. Weighing in at 31 lbs, the Post Falls, Idaho cheeseburger was enough to feed a whole family and then some. Click play or go to the link [youtube] to see the cheeseburger being made.
It's definitely not the world's largest burger though, that title goes to this 120 lb monster burger. Both record breaking sandwiches via our own cheeseburger statistician, A Welsh View.