Highly seasoned sweet onions, simmered in a tomato-based vinegar and brown sugar sauce and spooned over baked hot dogs, dressed with a spicy brown mustard.
Hot Dog Onion Sauce
Y'all. I feel so left out about onion sauce, or more specifically, pushcart onions. I had never even heard of them before now!
Food trucks aren't a big thing where I live, though we do have a few around here and there. We don't exactly have pushcarts here in the Biloxi area either, although Lucky Dog pushcarts do exist in New Orleans and apparently now in Bay St. Louis, over on the Louisiana/Mississippi state line. I've had a few of their dogs over the years.
You'll certainly find hot dog vendor booths at our festivals, though I'm more likely to buy a corn dog there than a plain hot dog!