With the tip of a sharp knife score the top of the meat diagonally on both sides to allow marinade to penetrate. Season meat (both sides) with Kosher salt and freshly ground pepper.
Combine marinade ingredients and pour the marinade over the steak. Make sure meat is well coated on both sides.
Cover in plastic wrap and refrigerate for 3 to 6 hours. Remove from refrigerator 2 HOURs before cooking and continue marinating. This allows the marinade to fully work.
Preheat cast iron skillet on high for at least 5 minutes.
Sear on high heat for 4 minutes a side for medium rare.