🥩 Roasted Beef Tenderloin with French Onion Au Jus
A Showstopping Main Course That Will Steal the Spotlight
Get ready for a culinary masterpiece that melts in your mouth and leaves guests asking for seconds. This Roasted Beef Tenderloin with French Onion Au Jus is a restaurant-worthy dish that’s perfect for special occasions, holidays, or an intimate date night dinner. With juicy beef, caramelized onions, and a rich red wine jus, this recipe delivers indulgent comfort and gourmet flair.
🍽️ Ingredients
For the Beef Tenderloin:
- 1 whole beef tenderloin (3–4 lbs)
- 1 tbsp olive oil
- 1 tsp salt
- ½ tsp freshly ground black pepper
For the French Onion Au Jus:
- 2 tbsp unsalted butter
- 2 large onions, thinly sliced
- 1 cup dry red wine
- 2 cups beef broth
- 1 tbsp Worcestershire sauce
- 1 tbsp chopped fresh thyme
- 1 tbsp chopped fresh rosemary
🔪 Instructions
1. Preheat the Oven
Preheat your oven to 425°F (220°C). Line a roasting pan or baking sheet with foil or parchment.
2. Prepare the Beef
Pat the beef tenderloin dry with paper towels. Rub it evenly with olive oil, salt, and pepper.
3. Sear the Tenderloin
Heat a large skillet over medium-high heat. Sear the tenderloin on all sides for about 3 minutes per side, until beautifully browned. Transfer it to the prepared roasting pan.
4. Roast to Perfection
Roast in the preheated oven for 15–20 minutes, or until a meat thermometer inserted into the thickest part reads 125°F (52°C) for medium-rare. Remove from the oven, tent loosely with foil, and let rest for 10 minutes before slicing.
🧅 Make the French Onion Au Jus
5. Caramelize the Onions
While the meat is resting, melt the butter in the same skillet over medium heat. Add sliced onions and cook for 15 minutes, stirring often, until golden brown and caramelized.
6. Deglaze with Red Wine
Add red wine to the onions, scraping the bottom of the pan to release all the flavorful bits. Let it simmer until reduced by half, about 5 minutes.
7. Build the Jus
Add beef broth, Worcestershire sauce, thyme, and rosemary. Simmer for 15 minutes, allowing the flavors to concentrate. Strain the sauce through a fine mesh sieve into a serving bowl for a smooth finish.
🍷 To Serve
Slice the tenderloin against the grain into thick medallions. Serve warm with a generous spoonful of the French onion au jus drizzled on top.
🧂 Perfect Pairings:
- Buttery mashed potatoes or truffle mashed cauliflower
- Roasted garlic green beans or asparagus
- A bold red wine like Cabernet Sauvignon or Syrah
👩🍳 Pro Tips
- Don’t skip the rest time. It helps the juices redistribute for maximum tenderness.
- For an extra rich sauce, you can stir in 1 tablespoon of cold butter at the very end of the jus.
- Leftovers make the most amazing steak sandwiches or wraps the next day.
💫 Final Thoughts
Elegant, hearty, and utterly satisfying, this Roasted Beef Tenderloin with French Onion Au Jus is a dish you’ll return to again and again. Whether it’s for the holidays or a special “just because” meal, it’s bound to impress and delight every guest at your table.
