For those who enjoy a bit of heat, this spicy Cajun air fryer chicken breast recipe is perfect. Use a food processor to make a Cajun spice blend by combining paprika, cayenne pepper, garlic powder, onion powder, thyme, oregano, salt, and pepper. Rub the spice blend all over the chicken breast and let it marinate for at least 1 hour. Place the chicken breast in the air fryer and cook until it's cooked through and crispy. The result is a spicy and flavorful chicken breast with a crispy exterior.