Using a food processor to make a homemade pesto filling adds a burst of flavor to air fryer chicken breast. Combine fresh basil, garlic, pine nuts, Parmesan cheese, olive oil, salt, and pepper in the food processor. Process until you have a smooth pesto. Cut a pocket in the chicken breast and stuff it with the pesto. Secure the opening with toothpicks. Place the stuffed chicken breast in the air fryer and cook until it's cooked through and the pesto is slightly crispy. The result is a moist and flavorful chicken breast with a delicious pesto filling.
