Season the pork chops with salt and pepper; set aside.
Place a large cast-iron skillet over medium-high heat and grease the pan with butter or vegetable oil.
Once the pan is hot, sear the chops for about 5 minutes on each side.
In a small bowl, combine the parmesan cheese, mayonnaise, garlic, pepper and parsley.
Turn the oven broiler on high.
When the chops are seared on both sides, check the internal temperature of the thickest pork chop. You want the temperature to be around 120℉-130℉. If it's not quite there, cover the pan with foil and keep the skillet on a burner on low until you hit that temperature.
Divide the parmesan mixture between the chops and spread evenly over top of each.
Broil for 2-3 minutes or until the topping is golden brown. (Keep a close eye on the chops as they broil - they can go from pale to burnt quite quickly in that intense heat!)
The optimal internal temperature of the chops is 145℉.
Let the pork chops rest for 5 minutes before serving.
Garnish with additional fresh parsley, if desired.