01 - Remove the steaks from the refrigerator 30 minutes before cooking to let them reach room temperature. Pat dry with paper towels.
02 - Season both sides of the steaks generously with kosher salt and black pepper.
03 - Heat a cast iron skillet over high heat until very hot (about 3–5 minutes).
04 - Add olive oil to the skillet, swirling to coat. Place the steaks in the skillet and sear without moving for 2–3 minutes until a deep brown crust forms.
05 - Flip the steaks and add butter, garlic, thyme, and rosemary to the pan.
06 - Tilt the skillet slightly and, using a spoon, baste the steaks continuously with the melted garlic butter for 2–3 minutes, or until desired doneness (125°F for medium-rare).
07 - Transfer steaks to a plate, tent loosely with foil, and rest for 5 minutes.
08 - Slice against the grain and serve, spooning extra garlic butter from the pan over the steaks. Sprinkle with flaky sea salt if desired.