First, preheat the air fryer to 350℉
Once the air fryer is heated add a handful of frozen meatballs into the basket. You can crowd them a little but do not stack them on top of each other.
Note, the frozen meatballs I used were large. If the brand you choose are small meatballs you will need to lower the cooking time.
Air fry for 7 minutes. Remove the basket and give the meatballs a shake. Place the basket back and cook another 8 minutes.
After, the meatballs should be firm and juicy. Serve.