Tbf McDonalds is also double fried, just the first time happens before they are flash frozen and sent to the restaurant.

Okay, I didn't want to elaborate the entire recipe :)... was just a way of making a small joke by making it sound like the Champagne wine region.

Sysco does or used to sell a french fry that was indistinguishable from McDonald's when cooked similarly. They had a catalog that visualized lined up individual representative french fries.