I know you said that you were looking to cook them yourself, but I recently noticed that both Gino's East on Wells and Ed Debevic's right across the street prominently advertise Nathan's products.
Seems pretty weird that supposed Chicago institutions in the heart of a place frequented by visitors looking for Chicago experiences would throw their lot in with an East Coast dog. Not exactly surprising, but illustrative.
Joe G.
"Whatever may be wrong with the world, at least it has some good things to eat." -- Cowboy Jack Clement