Preheat the oven to 220C/440F. Place a cast iron pan in the oven to heat up.
Bring the steaks to room temperature. Pat them dry with paper towels and rub olive oil all over each steak. Season with salt and pepper.
Carefully remove the hot skillet from the oven and place it on the stove over high heat.
Place the steaks on top and sear each side for 1 1/2 minutes.
Transfer the skillet back into the oven and roast for 4 minutes for medium rare, 6 minutes for medium, or 8 minutes for well done.
Remove the steaks from the oven and add butter on top of each one.
Notes
* Through recipe testing, I found Ribeye steaks to be the best. New York strip steak and T-bone steaks also work. TO STORE: Let the steaks cool completely, then place them in an airtight container in the refrigerator for 3-4 days. TO FREEZE: Wrap the leftovers in foil, place them in a freezer bag, and freeze for up to 3 months. Let them thaw overnight before reheating. TO REHEAT: Reheat the steaks in the oven at 275F until they reach an internal temperature of 130F.Recipe variations
Roast veggies with the steaks. Once the steaks are seared, add in chopped veggies (I like potatoes, carrots, and onions) into the skillet and let them cook in the steak juices.
Aromatics. Sear the steaks with fresh herbs (I like rosemary or thyme) and minced garlic for more flavor.
Pan sauce. Remove the steaks from the skillet with tongs, then add the butter and let it melt. Once the butter has melted, drizzle it over the steaks before serving.