Looking to impress your guests with a dish that’s both elegant and bursting with flavor? This Roasted Beef Tenderloin paired with a rich French Onion Au Jus is the perfect centerpiece for any special occasion. Combining the tenderness of perfectly roasted beef with the deep, savory notes of caramelized onions, this recipe promises a dining experience that’s both comforting and sophisticated.
Ingredients
For the Beef Tenderloin:
- 1 (4-5 pound) beef tenderloin, trimmed
- 2 tablespoons olive oil
- 4 cloves garlic, minced
- 2 tablespoons fresh thyme leaves
- Kosher salt and freshly ground black pepper
- 2 cups beef broth
- 1 cup water
For the French Onion Au Jus:
- 4 tablespoons butter
- 2 large yellow onions, thinly sliced
- 1 tablespoon fresh thyme leaves
- 2 cloves garlic, minced
- 1 teaspoon brown sugar
- 1 tablespoon Worcestershire sauce
- 2 cups beef broth
- Kosher salt and freshly ground black pepper
Instructions
Preparing the Beef Tenderloin:
- Preheat the Oven: Set your oven to 425°F (220°C) to ensure it’s ready for roasting.
- Season the Tenderloin: In a small bowl, mix the olive oil, minced garlic, and fresh thyme. Rub this mixture evenly over the beef tenderloin. Generously season with kosher salt and freshly ground black pepper.
- Sear the Meat: Heat a large, oven-safe skillet over medium-high heat. Once hot, sear the tenderloin on all sides until a golden-brown crust forms, about 3-4 minutes per side.
- Roast: Transfer the skillet to the preheated oven. Roast the tenderloin for 25-30 minutes, or until the internal temperature reaches your desired level of doneness (130°F/54°C for medium-rare).
- Rest the Meat: Remove the tenderloin from the oven and place it on a cutting board. Tent with foil and let it rest for 15 minutes to allow the juices to redistribute.
Preparing the French Onion Au Jus:
- Caramelize the Onions: In a medium saucepan, melt the butter over medium heat. Add the sliced onions and cook, stirring occasionally, until they become soft and golden brown, about 25-30 minutes.
- Add Flavorings: Stir in the minced garlic, fresh thyme, and brown sugar. Cook for an additional 5 minutes to deepen the flavors.
- Deglaze and Simmer: Pour in the Worcestershire sauce and beef broth, scraping up any browned bits from the bottom of the pan. Bring the mixture to a simmer and let it cook for 10-15 minutes, allowing the flavors to meld. Season with kosher salt and freshly ground black pepper to taste.
Serving Suggestions
Slice the rested beef tenderloin into ½-inch thick medallions and arrange them on a serving platter. Spoon the warm French Onion Au Jus over the slices or serve it on the side for dipping. Pair this dish with creamy mashed potatoes, roasted vegetables, or a fresh green salad for a complete meal.
Tips for Success
- Meat Thermometer: Using a meat thermometer ensures your tenderloin reaches the perfect level of doneness without overcooking.
- Resting is Crucial: Allowing the meat to rest after roasting ensures it remains juicy and flavorful.
- Caramelizing Onions: Patience is key. Slowly caramelizing the onions brings out their natural sweetness, adding depth to the au jus.
Final Thoughts
This Roasted Beef Tenderloin with French Onion Au Jus is more than just a meal; it’s an experience. The tender, flavorful beef combined with the rich, savory au jus creates a dish that’s sure to impress. Whether you’re celebrating a special occasion or simply want to treat yourself, this recipe delivers elegance and taste in every bite.