
Rub the ancho, garlic, salt and pepper into each side of the porterhouse steak. Get it good and in there.
Heat a cast iron pan to medium-high heat and add the oil.
Set the ancho-rubbed porterhouse into the pan and let it sit for 5 minutes, without touching it.
Flip and add the butter over the top. Cook for 4 minutes more.
Remove the steak from the heat and let it rest for 5 minutes before slicing. Enjoy!