Preheat your outdoor grill to medium-high heat (about 400°F/200°C). Clean and lightly oil the grill grates to prevent sticking.
Use paper towels to pat the pork chops completely dry. This helps the oil and spices adhere properly and promotes a better sear.
In a small bowl, mix the brown sugar, smoked paprika, garlic powder, onion powder, salt, and black pepper.
Rub both sides of the pork chops with olive oil, then generously apply the spice mixture, pressing it gently into the meat.
Place the chops on the hot grill. Cook for 4-5 minutes per side. Avoid moving them around too much so they can develop those beautiful, dark grill marks.
Use a meat thermometer to check the internal temperature. As soon as the thickest part reads 145°F (63°C), immediately remove the chops from the grill.
Transfer the pork chops to a clean plate or cutting board, tent loosely with aluminum foil, and let them rest for 5 minutes before serving to lock in the juices.