1. In a large bowl, combine the ground turkey, onion, bread crumbs, egg, flour, Worcestershire sauce, garlic powder, salt, coriander, and pepper. Mix well with your hands.
2. Divide the turkey mixture to form 8 patties. With your thumb, put an indent in the centre of each one to prevent the patties bunching up in the middle.
3. Spray with oil spray on both sides of the turkey patties.
4. Place them in the basket of hot Air Fryer. Do not stack them; just cook in batches. Put basket in the machine, set the temperature to 360 F (180 C) and cook for 10-15 minutes.