Believe it or not, the best way to reheat a steak is also the best way to cook a steak in the first place. Enjoy!
Steak (How to cook AND reheat)
Directions
Use desired marinade or rub. For a salted rub, cook steaks after 5 minutes of applying or after 40 minutes (but not between 5-40 minutes).
To cook or reheat:
Place steaks on a wire rack set in a rimmed baking sheet and warm them on the middle rack of a 250-degree oven until the steaks register 110 degrees (roughly 30 minutes for 1 1⁄2-inch-thick steaks, but timing will vary according to thickness and size). Pat the steaks dry with a paper towel and heat 1 tablespoon of vegetable oil in a 12-inch skillet over high heat until smoking. Sear the steaks on both sides until crisp, 60 to 90 seconds per side. Let the steaks rest for five minutes before serving. After resting, the centers should be at medium-rare temperature (125 to 130 degrees) when temped with an instant-read thermometer.
Original link:
https://www.cooksillustrated.com/how_tos/6514-how-to-reheat-steak-without-overcooking-it
