Place frozen mozzarella cheese sticks into the air fryer basket, making sure to leave enough space for them to cook evenly. My particular air fryer fits about 8-10 comfortably in the basket.

Set air fryer to 390 degrees F and 8 minutes cook time and shut the lid. After about 6 minutes of cooking, carefully flip the cheese sticks so that they fry evenly.

Allow them to cook the remaining 2 minutes.

They may need an additional 1-2 minutes of cook time, depending on how crispy you like them, but make sure to check them at 8 minutes.

Open the lid when the cook time is up and allow fried mozzarella sticks to cool a few minutes before eating.