How do restaurants turn spuds into spiral strings of curly fries, and what goes into that thick, punchy seasoning on top?

As soon as the first chef sliced a potato into thin wedges and dunked them in hot oil, curly fries were inevitable. Regular french fries did the job just fine, of course, as they do to this day ...

In fact, outside of McDonald’s, Arby’s was everyone’s next top pick. “Arby’s curly fries and it's not even close. The modern world is riddled with salt, and adding more doesn’t make it ...