in the recent Chicago Magazine Feb 2009 edition, they state:
Under a puffy dill bun and a melt of Havarti, the four-inch-tall hunk of three freshly ground meats (including filet mignon) weighs in at eight glorious ounces.
Duchamp's burger is the juiciest, the beefiest, and the best we've had in ages.
Duchamp (an American Bistro)
2118 N Damen Ave
Chicago
773-235-6434