Preheat your air fryer to 400°F (204°C).
Mix the onion powder, garlic powder, salt, and black pepper in a small bowl.
In a separate bowl, combine the softened cream cheese, shredded mozzarella cheese, and chopped fresh basil until well-mixed.
Lay the chicken breasts flat on a cutting board. Then, make a horizontal cut through the thickest part of each breast, creating a pocket for the filling. Be careful to cut only some of the way through.
Stuff the cream cheese mixture into the pocket of each chicken breast, dividing it equally. Seal the pocket with toothpicks to prevent the stuffing from leaking during cooking.
Lightly drizzle avocado oil over the surface of each chicken breast.
Sprinkle the spice blend evenly over the surface of each chicken breast. Rub the chicken breast gently to distribute the seasoning.
Place the stuffed and seasoned chicken breasts in your air fryer, ensuring they’re not touching each other.
Air fry the stuffed chicken breasts at 400°F (204°C) for 15 - 20 minutes or until the chicken is cooked through and reads 165°F (74°C) with a meat thermometer. Flip the chicken halfway.
Carefully remove the chicken breasts from the air fryer. Then, let them rest for 5 minutes before serving.
Remove the toothpicks and slice each stuffed chicken breast diagonally. Serve with your favorite side dishes or a fresh salad.
Enjoy your delicious and easy-to-make air fryer stuffed chicken breast!