01 - Remove steaks from refrigerator 30 minutes before cooking to reach room temperature. Pat thoroughly dry with paper towels.
02 - Generously season both sides of each steak with kosher salt and freshly ground black pepper, pressing seasoning into the meat.
03 - Heat cast iron skillet over high heat until extremely hot, approximately 3–5 minutes. A few drops of water should immediately sizzle and evaporate.
04 - Add olive oil to hot skillet, swirling to coat the bottom evenly. Place steaks in pan and sear without moving for 2–3 minutes until a deep golden-brown crust develops.
05 - Flip steaks using tongs. Add butter, crushed garlic, thyme, and rosemary to the pan alongside the meat.
06 - Tilt skillet slightly and continuously baste steaks with melted garlic butter using a spoon for 2–3 minutes. Cook until desired doneness is reached (125°F for medium-rare).
07 - Transfer steaks to a clean plate and tent loosely with aluminum foil. Allow to rest for 5 minutes to redistribute juices.
08 - Slice steaks against the grain and serve immediately, spooning remaining garlic butter from pan over the top. Finish with flaky sea salt if desired.