01 - Pat steaks thoroughly dry with paper towels to ensure proper searing. Brush both sides of each steak evenly with olive oil.
02 - Combine kosher salt, black pepper, minced garlic, and dried rosemary in a small bowl. Rub the mixture generously over all surfaces of the steaks, pressing gently to adhere.
03 - Preheat gas or charcoal grill to high heat, maintaining temperature between 450–500°F for optimal searing.
04 - Place seasoned steaks directly on the hot grill grates. Cook for 4–5 minutes per side for medium-rare doneness. Use an instant-read thermometer to verify internal temperature: 130°F for medium-rare, 140°F for medium.
05 - During the final minute of grilling, place ½ tablespoon unsalted butter on top of each steak, allowing it to melt and infuse the meat.
06 - Remove steaks from grill and tent loosely with aluminum foil. Let rest for 5 minutes to allow juices to redistribute throughout the meat.
07 - Serve steaks hot while resting juices are still warm. Accompany with fresh lemon wedges if desired.