1. Place cleaned chicken drumsticks in a large ziplock bag.
2. In a small mixing bowl, combine marinade ingredients and stir until well-combined. Pour into bag and seal. Rub bag thoroughly to ensure chicken is well-coated with marinade and refrigerate for a minimum of one hour.
3. Preheat grill to medium heat and lightly coat with cooking spray. Grill chicken, turning to cook evenly, for about 15–20 minutes, or until chicken is cooked through. Serve immediately.