Kathy Herwig had the kind of question that apparently no one really knows the answer to: why ketchup is a taboo topping on Chicago hot dogs. Reporter Quinn Ford took on this tasty question and here's what he found.
Do you know of a better or verified reason as to why no ketchup? If so, email us: firstname.lastname@example.org
And if you'd like to ask your own questions to our project, head to: curiouscity.wbez.org/#!/ask
The sad Ketchup bottle hot dog cake was made by: Cathay Rayhill of The Sugar Syndicate.