Flatten the chicken (optional but recommended): Place the chicken breasts between two sheets of parchment. Pound gently with a rolling pin to an even 3/4–1-inch thickness.
This helps them cook evenly and stay juicy.
Make the marinade: In a bowl, combine peri peri sauce, olive oil, garlic, lemon juice, smoked paprika, cumin, onion powder, salt, pepper, and cayenne if using.
Coat the chicken: Add the chicken to the bowl and toss until fully coated. For best flavor, marinate at least 20–30 minutes (up to 12 hours in the fridge). If you’re short on time, even 10 minutes helps.
Preheat the air fryer: Set to 380°F (193°C) for 3–5 minutes.
A hot basket helps sear the outside.
Arrange and cook: Lightly spray the basket with oil. Lay the chicken breasts in a single layer, not touching. Air fry at 380°F (193°C) for 8–10 minutes.
Flip and finish: Flip the chicken and cook another 5–8 minutes, or until the internal temperature reaches 165°F (74°C) at the thickest point.
Rest the chicken: Transfer to a plate and rest for 5 minutes.
This keeps the juices in.
Serve: Slice and plate with lemon wedges and a sprinkle of parsley. Spoon any juices from the plate over the top for extra flavor.