Prepare the Steak: Season the steak with salt.
Sear the Steak: Sear the steak in a hot pan, flipping it every minute or so. After the first four flips, you can stop pressing down on the steak.
Add Flavorings: Once the steak reaches an internal temperature of about 35°C and has developed a good crust, discard most of the fat from the pan. Return the steaks to the pan, add butter, crushed garlic, and optionally fresh rosemary.
Baste the Steak: Control the temperature to prevent the butter from burning. Tilt the pan to one side and baste the steaks with the melted butter and flavorings.
Finish Cooking: Once the steak reaches an internal temperature of 45°C, remove it from the pan.
Rest the Steak: Let the steak rest for 6 to 7 minutes before serving.
Serve: Serve the steak with its delicious crust and blushing pink interior.