01 - Pat steaks completely dry with paper towels, then brush both sides evenly with olive oil.
02 - Combine salt, pepper, minced garlic, and rosemary in a small bowl. Press mixture firmly onto all surfaces of the steaks.
03 - Heat gas or charcoal grill to high temperature, reaching 450-500°F.
04 - Place steaks on hot grill. Cook 4-5 minutes per side for medium-rare (130°F internal temperature), adjusting time for your preferred doneness level.
05 - During the final minute of grilling, place ½ tablespoon butter atop each steak to melt and enhance flavor.
06 - Transfer steaks to cutting board, tent loosely with foil, and let rest for 5 minutes to allow juices to redistribute throughout the meat.
07 - Serve steaks hot with lemon wedges on the side.