Step 1

Preheat your cast iron skillet over medium high heat. The pan should be smoking hot.

Step 2

Season your steak liberally with salt and pepper.

Step 3

Add your oil and butter to the pan. Immediately add your steak. Let it sear for 2-3 minutes.

Step 4

Add the garlic and thyme.

Step 5

Flip the steak, and sear for another 2-3 minutes. Spoon some of the cooking liquid over the top of the steak for flavor.

Step 6

Check the temperature of the steak. If it's done, then place it on a cooling rack to rest for 7-10 minutes before serving. If it's not done, put in in the oven at 400°F for another five minutes and check the temperature again.

Step 7

Slice against the grain and serve.