01 - Remove the steaks from the refrigerator 20 minutes before cooking to bring them to room temperature. Pat both sides thoroughly dry with paper towels to ensure a proper sear.
02 - Season both sides of each steak liberally with salt and freshly ground black pepper, pressing the seasonings gently into the meat.
03 - Heat the olive oil in a heavy skillet, preferably cast iron, over high heat until the oil just begins to shimmer and smoke lightly.
04 - Carefully lay the steaks in the hot skillet and sear for 2 to 3 minutes per side until a deep golden-brown crust forms across the surface.
05 - Reduce the heat to medium. Add the butter, minced garlic, and rosemary sprigs to the pan. Once the butter melts and becomes foamy, tilt the skillet and use a large spoon to continuously baste the steaks with the aromatics for 2 to 3 minutes.
06 - Continue basting until the steaks reach your desired doneness. For medium-rare, aim for an internal temperature of 130°F using a meat thermometer.
07 - Transfer the steaks to a warm plate and let them rest for 5 minutes to allow the juices to redistribute before slicing and serving.