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Three Slices of Juicy Beef Tenderloin Topped with Homemade Horseradish Sauce
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5 from 5 votes

Roast Beef Tenderloin with Horseradish

A perfectly seasoned, and perfectly cooked Roast Beef Tenderloin with Horseradish Sauce! You’ll love this great recipe for succulent herbed tenderloin with a spicy sour cream horseradish sauce.
Prep Time10 mins
Cook Time50 mins
Resting Time20 mins
Total Time1 hr 30 mins
Course: Dinner
Cuisine: American
Keyword: beef dinner ideas, beef dinner recipes, beef tenderloin, beef tenderloin recipe, beef tenderloin roast, easy beef recipes, how to cook beef tenderloin
Servings: 10
Calories: 610kcal


  • Stove
  • Oven


For the Beef

  • 4 pound whole beef tenderloin, trimmed and tied, and at room temperature (take tenderloin out of the fridge 1-hour before you're ready to cook it)
  • 2 teaspoons dried oregano
  • 2 teaspoons dried thyme
  • 2 teaspoons dried rosemary
  • 2 teaspoons garlic powder
  • 1 teaspoon salt
  • 1 teaspoon fresh ground black pepper
  • 3 tablespoons olive oil
  • 3 tablespoons butter
  • 2 sprigs fresh rosemary
  • 4 sprigs fresh thyme

For the Horseradish Sauce

  • ½ cup sour cream
  • 2 tablespoons mayonnaise
  • ½ teaspoon salt, or to taste
  • horseradish to taste


  • Preheat oven to 325˚F.
  • In a small mixing bowl, combine the oregano, thyme, rosemary, garlic powder, salt and pepper. Coat the beef tenderloin with the herb mixture.
  • Heat a heavy-bottomed skillet over high heat and add the olive oil once the skillet is hot. To the hot oil, add the tenderloin and sear each side for 3 to 4 minutes, or until golden brown.
  • Add butter, garlic, fresh rosemary, and fresh thyme to the skillet. Once the butter has melted, spoon it over the tenderloin.
  • Place the skillet in the oven, and roast for 30 minutes, or until the internal temperature reaches 135˚F to 140˚F.
  • Remove from oven; transfer to a cutting board and tent with foil. Let rest for 15 to 20 minutes before cutting.
  • While tenderloin is resting, make the horseradish sauce by whisking together the sour cream, mayonnaise, salt, and horseradish. Taste and adjust accordingly.
  • Slice the tenderloin and serve with the horseradish sauce.


Serves 8 to 10 people.


Calories: 610kcal | Carbohydrates: 1g | Protein: 33g | Fat: 52g | Saturated Fat: 21g | Cholesterol: 143mg | Sodium: 495mg | Potassium: 580mg | Fiber: 1g | Sugar: 1g | Vitamin A: 216IU | Vitamin C: 1mg | Calcium: 38mg | Iron: 5mg