Remove the Porterhouse steaks from the refrigerator and let them come to room temperature, about 30 minutes.

Pat the steaks dry with paper towels, then season both sides generously with salt and black pepper.

Heat your grill or cast-iron skillet to high heat.

Lightly brush the steaks with olive oil before placing them on the grill or skillet.

Place the steaks on the hot grill or skillet and let them cook without moving them for about 4-5 minutes.

Flip the steaks using tongs and add a couple of pats of butter on top.

Cook for another 4-5 minutes on the second side, using a meat thermometer to check for 130°F for medium-rare.

Remove the steaks from the heat and let them rest for about 10 minutes before slicing.