No grill required for this yummy steak with pan sauce.
Unwrap steak and sprinkle each side with kosher salt. Let sit at room temperature 30 minutes to one hour. Heat seasoned cast iron skillet on medium high heat. Turn on vent fan to prepare for smoke. Place steak in pan and cook for four minutes. Turn and cook another four minutes. Test temperature with instant read thermometer. If it is not done to your liking cook another 1 to 2 minutes per side. Place on platter and cover with foil to rest at least 10 minutes.
For pan sauce, deglaze skillet with beef broth, then add butter, cream, and pepper. Stir and simmer over medium heat until sauce has thickened and coats the back of a spoon.