Think you can eat this? Where's the beef? It's at a Pennsylvania pub that serves the world's biggest burger - weighing in at NINE lip-smacking pounds! Denny's Beer Barrel Pub is renown for its 9 lb. burgers. National and local newspapers have reviewed the burger and its main appeal seems to be... If you eat it in 3 hours it's free! but... NO ONE PERSON HAS EVER FINISHED ONE! That's no whopper - you can actually get this meat monster for $23.95, loaded with all the "fixins"... Ingredients: 9 lb. (19.8kg) Burger Two whole tomatoes A half-head of lettuce 12 slices of American cheese A full cup of peppers Two entire onions Plus, a river of mayonnaise, ketchup, and mustard.