This post on the Ontario board catches my eye evertime I see it on hot posts ... so much so that I'm going out and buying a can of crispy fried onions to put on my Labor Day hot dog. Does that sound like a good combo or what?
The poster says that this is common in Sweden where another topping offered was creamy shrimp-salad sauce. Yeah, I don't know about that.
Another poster mentioned in France the dog was topped with fries ... hmmm ... maybe seasoned curly fries would be good too. I've put fries on a burger, never considered it for a hot dog before this.
When I first moved to California from New England I was shocked to see chopped fresh tomatoes and onions on dogs along with the mustard and relish ... but it really works. However, that's not too unusual.
Any other frank toppings outside the norm?