Add the turkey wings to a large bowl. Season with salt, spices, parsley, garlic, and Worcestershire sauce. Be sure to cover both sides of the wings with seasonings. Using gloved hands, rub the spices into the wings. Place the turkey wings in the fridge for at least 30 minutes to allow the spices to tenderize the turkey wings. (The longer the better, up to 2-3 hours or overnight if time permits)
When ready to cook the turkey wings, preheat the oven to 350 degrees F (175 degrees C).
Slice the onion, green pepper, and red pepper. Then, place the sliced veggies into a large baking dish.
Place the turkey wings on top of the peppers. Pour chicken broth into the side of the baking dish. (Do not pour the broth directly onto the turkey wings because it will rinse off the spices.)
Cover the dish tightly with aluminum foil and place in the oven. Bake for 1 ½ -2 hours, or until tender.
Remove the turkey wings from the oven. Carefully remove 1 ½ cup of the broth from the baking dish and set it aside.
Place the wings back in the oven and bake uncovered for 15-20 minutes or until the skin is crispy and the wings are fully cooked. The turkey wings are fully cooked when an instant thermometer inserted into the thickest part of the wings reads at least 165°F.
In a small saucepan over medium-low heat, add the reserved broth. Stir the cornstarch and water together in a small bowl. Then, add the cornstarch mixture and whisk until it is thick and bubbles slightly.
When the wings are done, remove them from the oven and pour on the thickened gravy. Serve with your favorite sides and enjoy!