This perfectly seasoned, tender Roast Beef Tenderloin with Horseradish looks elegant but is surprisingly simple to prepare. This stovetop-to-oven method yields a juicy, herb-crusted tenderloin served with a zesty sour cream horseradish sauce.
The Easiest Roast Beef Tenderloin
Some of the best dishes are the simplest to make, and this tenderloin is a perfect example. Rather than elaborate reductions or complicated garnishes, this recipe relies on good seasoning, a hot sear, and a brief oven roast. The result is a restaurant-worthy roast you can confidently serve at home.
What Is Beef Tenderloin?
Beef tenderloin is one of the most tender, lean cuts of beef. High-end steaks like filet mignon come from the tenderloin, which explains its premium price. Because it has relatively little marbling, it can dry out if overcooked, so this cut is best enjoyed rare to medium-rare.
Recipe Ingredients
This recipe keeps ingredients straightforward: a selection of dried and fresh herbs, a little garlic powder, olive oil and butter for searing, and a quick sour cream horseradish sauce to finish.
For the Beef
- Beef Tenderloin: One trimmed, tied 4-pound whole beef tenderloin (bring to room temperature about 1 hour before cooking).
- Herbs: 2 tsp each dried oregano, thyme, and rosemary, plus fresh sprigs of thyme and rosemary for the pan.
- Garlic Powder: 2 tsp for savory depth.
- Salt & Pepper: To taste—about 1 tsp salt and 1 tsp freshly ground black pepper.
- Olive Oil & Butter: 3 tbsp olive oil and 3 tbsp butter for searing and basting.
For the Horseradish Sauce
- Sour Cream: 1/2 cup.
- Mayonnaise: 2 tablespoons for richness.
- Salt: 1/2 teaspoon, or to taste.
- Prepared Horseradish: Add to taste for desired heat.
How to Make Roast Beef Tenderloin with Horseradish
This straightforward method is ideal for first-time tenderloin cooks. An instant-read meat thermometer is highly recommended so you can pull the roast at the perfect temperature.
- Preheat and Season: Preheat oven to 325°F. Mix dried oregano, thyme, rosemary, garlic powder, salt and pepper in a small bowl. Rub the herb blend all over the tenderloin.
- Sear: Heat a heavy-bottomed, ovenproof skillet over medium-high heat and add olive oil. Sear the tenderloin on all sides until golden, about 3–4 minutes per side.
- Butter and Aromatics: Lower heat slightly, add butter, a few garlic cloves (optional), and fresh rosemary and thyme sprigs to the pan. Once the butter melts, spoon it over the meat to baste.
- Roast: Transfer the skillet to the preheated oven and roast about 30 minutes, or until the internal temperature reaches 135–140°F for medium-rare. Begin checking at around 22 minutes.
- Rest and Sauce: Remove the roast to a cutting board, tent with foil, and rest 15–20 minutes. While it rests, whisk together sour cream, mayonnaise, salt, and horseradish; adjust seasoning to taste.
- Slice and Serve: Slice the tenderloin and serve with the horseradish sauce.
Tips for the Best Roast Beef
- Trim Silver Skin: If any silvery connective tissue remains, remove it with a sharp knife to prevent tough bites.
- Serve Fresh: This tenderloin is best enjoyed shortly after resting—don’t roast it too far in advance.
- Use a Thermometer: An instant-read thermometer ensures accurate timing and avoids overcooking.
Serving Suggestions
This roast pairs well with many sides. Try creamy potato or gnocchi dishes, a crisp green salad, or a simple vegetable side to balance the richness.
- Gnocchi & Bacon: A creamy gnocchi casserole makes a rich, satisfying side.
- Salad: A classic Caesar or a fresh garden salad brightens the meal.
- Pie or Dessert: A warm apple pie or a light dessert finishes the meal nicely for gatherings.
How to Store and Reheat Leftovers
- Refrigerate: Wrap leftovers tightly in plastic wrap or place in airtight containers. They will keep 3–5 days.
- Reheat: Warm gently in a 250°F oven in an ovenproof dish until internal temperature reaches 140°F, then briefly sear in a hot skillet to refresh the crust before slicing.
Can You Freeze Tenderloin?
- Yes. Wrap the roast in multiple layers of plastic wrap, then foil, and freeze up to 3 months.
- Thaw overnight in the refrigerator and reheat as directed above.
Roast Beef Tenderloin with Horseradish
Ingredients
For the Beef
- 4 pound whole beef tenderloin, trimmed and tied, at room temperature
- 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
- Prepared horseradish, to taste
Instructions
- Preheat oven to 325˚F.
- Combine oregano, thyme, rosemary, garlic powder, salt and pepper. Coat the tenderloin with the herb mixture.
- Heat a heavy skillet over high heat and add olive oil. Sear the tenderloin on all sides, 3–4 minutes per side, until golden brown.
- Add butter, garlic (optional), and fresh rosemary and thyme to the skillet. Spoon melted butter over the meat to baste.
- Transfer the skillet to the oven and roast about 30 minutes, or until internal temperature reaches 135–140˚F for medium-rare. Start checking at 22 minutes.
- Remove from oven, transfer to a cutting board, and tent with foil. Rest 15–20 minutes before slicing.
- While the tenderloin rests, whisk sour cream, mayonnaise, salt, and horseradish together. Adjust seasoning to taste.
- Slice the tenderloin and serve with the horseradish sauce.
Equipment
- Stove
- Oven
Notes
Serves 8 to 10 people.
Nutrition
Calories: 610 kcal | Carbohydrates: 1 g | Protein: 33 g | Fat: 52 g | Saturated Fat: 21 g | Cholesterol: 143 mg | Sodium: 495 mg
Nutritional info is an estimate and provided as a courtesy. Values may vary; use your preferred calculator for detailed info.
More Dinner Ideas
Looking for more easy dinner inspiration? Try these reliable crowd-pleasers.
- Chicken Fettuccine Alfredo
- Creamy Tomato Sauce Tilapia
- Beef Tips in Mushroom Gravy