Place bacon slices in the air fryer basket or trays in a single layer. If necessary, you can slice the bacon in half and/or air fry on racks, or cook in batches. Sprinkle with black pepper, if desired (totally optional!)
Air fry at 400°F for 10 minutes, or until the bacon reaches your desired level of crispness.
Notes
Depending on the size of your air fryer basket or tray(s), you may need to either cut the bacon slices in half and then place in a single layer on the basket or tray(s). Or, you may need to work in batches.