Follow these steps to prepare your Turkish Chicken Kebabs:

1. Prepare the Marinade: In a large mixing bowl, combine olive oil, yogurt, minced garlic, lemon juice, cumin, paprika, coriander, salt, black pepper, and cayenne pepper (if using). Whisk until well combined.
2. Marinate the Chicken: Add the chicken cubes to the marinade. Ensure all pieces are coated well. Cover the bowl with plastic wrap and refrigerate for at least 30 minutes, or overnight for maximum flavor.
3. Preheat the Grill: Preheat your grill to medium-high heat. If using wooden skewers, soak them in water for 30 minutes to prevent burning.
4. Skewer the Chicken: Thread the marinated chicken onto the skewers, leaving a small space between each piece for even cooking.
5. Grill the Kebabs: Place the skewers on the preheated grill. Cook for 15-20 minutes, turning occasionally until the chicken is cooked through and has nice grill marks.
6. Check Doneness: Ensure the chicken reaches an internal temperature of 165°F (75°C).
7. Garnish: Once cooked, remove the skewers from the grill. Sprinkle fresh parsley on top for added flavor and presentation.
8. Serve Hot: Serve the kebabs immediately with your favorite sides and dipping sauces.

These steps will guide you in creating the most flavorful and succulent Turkish Chicken Kebabs effortlessly.