Preheat your air fryer to 200°C (390°F) to get it ready for the chicken.
Pat the chicken breasts dry with kitchen paper towels until they feel firm and the surface is moisture-free. This step helps achieve that perfect crispy exterior.
In a small bowl, combine the olive oil, salt, pepper, paprika, garlic powder, dried thyme, and lemon zest if using. Mix well to create a flavorful seasoning paste.
Rub the seasoning mixture all over the chicken breasts, ensuring each piece is evenly coated with the spices and oil.
Place the seasoned chicken breasts in the air fryer basket, making sure they aren’t touching to allow hot air to circulate freely.
Cook the chicken for 10-12 minutes, flipping halfway through with tongs. You'll notice the outside turning a beautiful golden brown and crispy.
Use a meat thermometer to check that the internal temperature has reached 75°C (165°F). The meat should feel firm but still juicy when pressed lightly.
Once cooked through, remove the chicken breasts from the air fryer and let them rest for a couple of minutes to lock in the juices.
Slice or serve the chicken breasts whole, enjoying the crispy exterior and moist, tender interior. Perfect for pairing with your favorite sides!