Tenderloin Steak - How to Cook it Perfect Every Time

INGREDIENTS FOR COOKING STEAKS
4 6 ounce beef tenderloin steaks
1 1/2 teaspoons kosher salt
1 teaspoon black pepper
2 Tablespoons butter
1 Tablespoon olive oil or avocado oil

THYME HERB BUTTER
1/4 cup butter room temperature
1 clove garlic
1 teaspoon fresh Thyme

INSTRUCTIONS

TO MAKE HERB BUTTER:
Mix room temperature butter, garlic, and thyme together. Spread a strip about the diameter of a quarter on a piece of wax paper. Roll up and twist ends. Refrigerate for at least 20 minutes before using.

HOW TO COOK TENDERLOIN STEAKS:
Remove steaks from the refrigerator at about an hour before you're ready to cook thme. The steaks need to be room temperature to cook through perfectly.
Preheat oven to 400°.
Pat steaks dry (this helps the steaks to get a nice crust on them). Season both sides very generously with salt and pepper. Press salt and pepper if needed to help it stick to the meat.
Heat a cast-iron skillet, or heavy skillet, over medium-high to high heat. Add butter and olive oil. Add steaks and sear for 2-3 minutes per side. Spoon butter over steaks as they cook.
Insert an oven-safe thermometer and set an alarm for desired temperature (remember the temperature will rise about 3-5 degrees as the steaks rest). Put steaks in the oven and bake until they reach the desired temperature. This will take between 6-10 minutes depending on the thickness of the steaks and how hot you want them. I don't recommend going over medium for these steaks.

See cooking chart in the notes below.
Top with slices of herb butter. Cover with aluminum foil and allow to rest for 10 minutes before serving.

Source: https://pitchforkfoodie.com/herbed-butter-tenderloin-steak/