I almost NEVER put mustard on my hotdog. Ketchup is the ONLY way to eat a hotdog. I sometimes also add cheese and chips to my hotdog for the extra flavour and crunch. :D

Ketchup is the only thing I will have on my hotdog, and a hotdog is the only thing I will have Ketchup on. Most of the time I will use BBQ sauce.

My brother loves Ketchup, it is almost a food group with him. When he has any kind of meat, fries or mac n'cheese, he drowns is with Ketchup, he even puts it on pancakes... eww!

I like either ketchup or mustard on my hotdogs. I also have a thing for corn relish on my hotdogs. It's something different, but tastes really good.

I’d go for a hot dog with tomato sauce and mustard with relish or guacamole.

Seeing NovaX’s post I’m recalling the ketchup/sauce argument that I had with OO back in the old days…

There is this small "gormet" hot dog chain in my area called Super Duper Weenie. I've heard about them for years but never went to one until they opened a store down the road from me.

I ordered a dog and a drink and balked when he asked for $7.50. That alone was enough that I'd never come back again. So I went to the condiment section and found... no ketchup.

"I hope you're not looking for ketchup" says the cashieer, who was probably not even thirty and still couldn't grow a five o'clock shadow.

"Actually, I was"

"We dont serve ketchup on hot dogs here. Thats just wrong. Why would you even do that? It's disgusting"

"Excuse me, you fucking asshole? If this is the way you treat your customers, it's no wonder why theres no one else in here. Fuck you."

And I spit on the hot dog and left it in front of him and left. They closed about four months later due to "lack of business".

He did have a good point, though.

Ketchup AND mustard for me. Never much cared for relish, but I do loves me some ketchup and mustard on my dog.

I don't see how it's ever an establishment's interest to deny, let alone denounce, their client's tastes.

Then again - look at all other styles of Chicago food. They fucked up pizza and you can't even find good Chinese in that town.