Start by drying the chicken off with a paper towel.
Then use a mallet and pound the chicken until it's about 1/2 to 3/4 inch thick.
In a small mixing bowl, mix the panko bread crumbs, salt, black pepper, onion powder, and garlic powder.
Dip the chicken breast into the beaten egg, and then dip into the panko mixture, covering both sides. Use your hands to press the panko into the breast.
Place the coated chicken breast into the air fryer basket. Spray the coating GENEROUSLY with olive oil; this will help the coating crisp up.
Allow the air fryer to preheat, set the chicken into the air fryer, set the temperature to 370 degrees F (air fryer setting) for 5 minutes, and then flip (pray again with olive oil). Air fry for another 3-4 minutes until the chicken's internal temperature reaches 165 degrees F.
Plate, serve, and enjoy!