Step 1

Preheat oven to 400°F (200°C).

Step 2

In a small oven-safe skillet over medium-high heat, heat oil for 30 seconds. Pat the steak dry with a paper towel and sprinkle both sides of the beef with salt and pepper.

Step 3

Place beef in the skillet and sear on both sides, about 4 minutes per side.

Step 4

Transfer steak (still in the skillet) to the oven and bake for 5 minutes.

Step 5

Remove steak when a meat thermometer inserted in the center reads 125°F (for rare), 130°F (for medium-rare), 140°F (for medium).

Step 6

Add butter to the top of the steak and cover with aluminum foil. Let steak rest for 5 minutes before cutting.