Butterfly the chicken drumsticks by running a sharp knife alone the each side of the bone. Set them aside.
In a small bowl, stir together the olive oil, salt, pepper, garlic powder, onion powder, paprika, chili powder and parsley until it forms a paste.
Add the chicken drumsticks to a baking dish and pour the paste on top. Massage it into the chicken until its evenly coated.
Cover the chicken and place it in the refrigerator for at least 30 minutes. I like to try to let it marinate for a few hours or even overnight if I can.
Once you’re ready to cook the chicken, mix the melted butter with garlic paste, salt, pepper and parsley and pour it evenly on top of the chicken.
Place the baking dish into the center rack of a 400° oven for 40 minutes, basting half way through. If you’d like the crisp that skin up a little more, pop it under the broiler for a few minutes.
Finally, let the chicken rest for about 5 minutes, serve with extra garlic butter on top and enjoy!