Also from the interview with the restaurant owner,
"His restaurant in the Loop often attracts tourists, and many, who request ketchup on their Chicago dog.
“Of course we have to say no!” Chiappetti said. “We say ages 8 and under, you can have ketchup, but we try not to serve it.”
So maybe ask for ketchup, only if it’s for the kids. Otherwise, respect the reason that here in Chicago we skip the sweet red sauce.
“People didn’t want to cover it up and mask the true flavors. And how great is that? What a great premise to eating. Give me the natural, the best, don’t cover things up in sugar. I think the hotdog story is a lot of what the culinary story is in Chicago," Chiappetti said."
So it's official, at least in Chicagoland. So remember fellow BITOG people, including
@GON, when in Chicago, order your hotdog sans ketchup. To do otherwise may be a major faux pas.