Here’s the deal, if you put ketchup on your hot dog then you ain’t a real Chicagoan. The Windy City’s firm no-ketchup-on-hot-dogs rule did not stop Heinz making a tomato-based Chicago Dog Sauce in hopes that loyalists might reconsider their anti-ketchup stance.

Chicago Dog Sauce is currently being put to the test throughout the Chicago area and is available for a limited time only for $5 on its very own website.

So what’s the catch? It would seem that Heinz are out to punk the city’s time-honored sauce-free tradition by simply slapping a shiny new label on the company’s regular ol’ ketchup. Worse still, they caught traitors on film.

The classic Chicago dog is typically garnished with yellow mustard, chopped onions, neon-hued relish, a dill pickle spear, tomato slices, sport peppers and a dash of celery salt. “Don’t ruin the Mona Lisa with cheap red lipstick,” writes Eater in their takedown of the limited-edition condiment.