Using a food processor to make a homemade teriyaki sauce elevates the flavor of air fryer chicken breast. Combine soy sauce, brown sugar, garlic, ginger, sesame oil, and cornstarch in the food processor. Process until you have a smooth sauce. Coat the chicken breast with the teriyaki sauce and let it marinate for at least 1 hour. Then, place the chicken breast in the air fryer and cook until it's juicy and caramelized. The result is a tender and flavorful chicken breast with a sticky teriyaki glaze.
