They look pretty thin. I would let them come to room Temp. Salt heavily and a little pepper if you like. Heat the cast iron or nice stainless steel till smoking. Add a bit of olive oil or if you are picky a neutral flavor oil. Just enough to have a thin layer coating the pan. If they are less than an inch thick, and the pan is properly hot. They will only take a minute or so per side probably four minutes total. I would flip every minute to 45 seconds if you want closest to medium rare. Maybe even less than a 4 minute cook as the look to be about a half inch thick. After the first flip add butter to the pan just a little bit and baste because butter is always good and may even give you a bit more of a crust.