If you've never made frozen burgers in the air fryer, you're missing out on the single easiest meal you can make with your favorite new kitchen appliance.
Place the frozen patties in the air fryer basket, trying not to overlap.
Cook at 375°F for 5 minutes, then open the basket and baste with butter, flip the burgers over and baste the other side. Continue cooking for 4-6 more minutes, until the internal temperature reads 145°F for medium up to 160°F for well done.
Remove from the air fryer and build your burger.
Notes
You can cook the burgers for more or less time to reach a different internal temperature.
All air fryers have different wattage and may cook at different rates. You may need to adjust the time or temp for the best results.