Add the frozen french fries to your air fryer basket.
Cook the fries at 400 degrees for 10 minutes, then toss the fries a couple of times.
Cook for an additional 10 minutes.
Enjoy with ketchup!
Notes
I used a 4 quart air fryer so depending on the size of yours, you should fill the basket about half way no matter the size.You do not need to use any oil but if you think the fries will stick you can spray them a bit.