Beans and molasses.
" Mustard.This is literally the reason my dad doesn't put ketchup on his hot dog."
Anyway I go with Mustard and Ketchup, occassionally relish if I'm in the mood. If I had to pick one.. mustard. Ketchup on its own unsettles me.
I am fine with most hot dog toppings. Personally, I am a fan of new york style dogs with mustard and saurekraut. But I will even give a pass to those chicagoans who like to drag their hotdogs through the garden.
That being said, there is one hotdog condiment that is positively inexcusable, and that condiment is ketchup. That is an unforgivable abomination.