Season the steaks generously on both sides with steak seasoning and salt.
Preheat a cast iron skillet or heavy bottom non-stick pan over medium heat. Once hot, add the oil.
Place the steak into the pan and sear well on all sides to get a nice char. Once nicely charred lower the heat as needed so the steak cooks without burning the outside.
Continue cooking the steaks for a few minutes, add in the garlic and thyme until they reach your desired temperature using a thermometer (see below). If the steak is thick it is recommended to finish the steak in a 350°F oven so that the outside doesn't burn.
Remove the steak from the heat and allow to rest.
In the same pan over medium heat add the broth and butter. Bring to a simmer and reduce to a creamy consistency. Remove from the heat and strain through a mesh strainer if needed so the sauce is creamy and without any lumps.