One of the few recipes that I preheat the air fryer for, but preheat to 375 degrees, for a few minutes (about 4-6)
Spray the bottom of the air fryer basket with non-stick cooking spray, this will prevent the hamburgers from sticking when you go and flip them over.
Set the frozen hamburger in the air fryer basket.
Set the time for 7 minutes, after 7 minutes, check the burgers and flip them over.
Check the internal temperature has reached 145 degrees F, this will be a medium rare burger, add time if you would like a well-done burger.
