Preheat oven to 400 degrees, with a rack set in the middle.
Heat a heavy, cast-iron skillet over medium-high heat, until a few drops of water sprinkled in the hot pan evaporate within 3 seconds.
Coat the bottom of the pan with 2 teaspoons of extra light olive oil, grpeseed oil. (Always from a glass bottle.)
Liberally salt the steaks with kosher salt, about 3/4 teaspoon for each steak.
Place steaks in pan and sear for 2 minutes on each side, flipping only once with tongs.
Transfer the steaks, still in the pan, to the oven and roast for roughly 8 to 9 minutes for 11/2-inch steaks to achieve medium-rare (an instant-read thermometer should register between 125 and 130 degrees).
Let the steaks rest, under a tent of aluminum foil, for 5 minutes before serving.
On the grill, sear first over high heat, and then move the steaks to a cooler part of the grill to finish cooking