July 13 is National French Fry Day and you might be wondering what the heck is Dunkin Donut’s gotta do with French fries but I tell you they’re up for newest invention in town!

Earlier this month, Dunkin’ launched Donut Fries nationwide. Doubtful about this whole idea? You can try them for free on National French Fry Day. The first 100 people to visit the 25 participating Dunkin’ Donuts locations will get a free order of Donut Fries. The promotion will run from 10:00 am to 2:00 pm local time.

You can buy Donut Fries all over the country, but the 25 participating stores are limited to five markets, like five restaurants in Boston, five in Chicago, five in Los Angeles, five in New York City, and one store each in five cities across Tennessee.

Donut Fries are a “buttery croissant style donut” coated in brown sugar. It’s totally not healthier than French fries but it has the potential to be your next breakfast dessert on a Friday.