01 -
Tie the trimmed beef tenderloin pieces with butcher's twine to help maintain an even shape during cooking. Season the tenderloin generously with salt and black pepper, ensuring all sides are coated. Allow the meat to rest at room temperature for about 2 hours for even cooking.
02 -
Preheat your oven to 425°F (220°C) to prepare for roasting.
03 -
Heat olive oil in a large cast-iron skillet over medium-high heat. Once the oil shimmers, add the tenderloin to the skillet. Sear each side for 3-5 minutes until a golden-brown crust forms. This step seals in the flavor and creates a beautiful exterior.
04 -
While the tenderloin is searing, combine softened butter, minced garlic, horseradish (or Dijon mustard), and your choice of minced rosemary or thyme in a small bowl. Mix until well blended.
05 -
Spread the butter mixture generously over the seared tenderloin for maximum flavor.
06 -
Insert a probe thermometer into the thickest part of the tenderloin. Transfer the skillet directly to the oven (or place the tenderloin in a baking dish if not using an oven-safe skillet). Roast for 20-25 minutes, or until the thermometer reaches your desired internal temperature.
07 -
Once the roast reaches your desired internal temperature, remove it from the oven and let it rest for 10-15 minutes. Slice and serve.