Step 1

Preheat oven to 500 degrees.

Step 2

Place the beef tenderloin on a baking sheet and pat dry with paper towels. Spread the olive oil over the entire surface of the tenderloin and sprinkle evenly with salt and pepper.

Step 3

Heat a roasting pan over high heat and add the tenderloin to the pan. Sear the beef on all sides until a golden brown crust has formed, approximately 10 minutes.

Step 4

Transfer the roasting pan to the oven and roast the beef for 20 minutes. (for medium-rare)

Step 5

Remove the beef from the oven and cover with foil. Allow to rest for 15 minutes.

Step 6

While the beef is resting, make the sauce by whisking together the sour cream, horseradish, dijon, vinegar, worcestershire sauce, salt, pepper and chives.

Step 7

Serve the beef tenderloin with the sauce.