Description

This Million Dollar Roast Beef Tenderloin recipe delivers a succulent, perfectly roasted center-cut beef tenderloin enhanced with a rich garlic-thyme butter and a luscious mushroom Marsala cream sauce. The beef is dry-brined for maximum flavor and juiciness, seared to develop a beautiful crust, then slow-roasted for tender, evenly cooked meat. Finished with a decadent mushroom cream sauce, this elegant dish is perfect for special occasions or impressive family dinners.

Ingredients

Scale

Beef Tenderloin

1 whole Beef Tenderloin (Center cut recommended)
1 tablespoon Cooking Salt (Kosher or cooking salt preferred)
1 teaspoon Black Pepper (Freshly ground)
2 tablespoons Vegetable Oil (Can substitute with olive oil)

Butter Mixture

1/2 cup Unsalted Butter (Softened)
3 cloves Garlic (Finely grated)
2 tablespoons Fresh Thyme (Finely chopped)

Mushroom Sauce

8 ounces Mushrooms (White or Swiss Brown; Cremini adds richer flavor)
1/2 cup Marsala Wine (Substitute with dry white wine or stock)
1 cup Chicken Stock (Low sodium recommended)
1/2 cup Thickened Cream (Heavy cream preferred)

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Instructions

Preparation: Pat the beef tenderloin dry with paper towels. Generously season all over with cooking salt and freshly ground black pepper. For best results, refrigerate uncovered for 12 to 24 hours to dry brine and enhance the meat’s flavor and tenderness.
Prepare Butter Mixture: In a bowl, mix softened unsalted butter with finely grated garlic, chopped fresh thyme, and a pinch of salt and pepper. Stir thoroughly until combined and set aside.
Bring to Room Temperature: Two hours before cooking, remove the beef tenderloin from the refrigerator to allow it to come to room temperature, ensuring even cooking.
Sear the Beef: Heat a skillet over high heat and add vegetable oil. Once the oil is hot and shimmering, sear the beef tenderloin on all sides for about 3 to 4 minutes per side until a golden-brown crust forms. Remove from heat and place the beef on a rack to cool.
Preheat Oven and Apply Butter: Preheat your oven to 120°C (250°F). Spread approximately three-quarters of the prepared butter mixture evenly all over the beef.
Roast Beef: Place the buttered beef tenderloin in the oven and roast for 15 minutes. Remove briefly and apply the remaining butter mixture all over the beef. Return to the oven and continue roasting for an additional 25 to 35 minutes, or until the desired doneness is reached. Use a meat thermometer: aim for medium rare at about 54°C (130°F) internal temperature.
Rest the Meat: Once cooked, remove the roast from the oven and let it rest on a cutting board for at least 10 minutes. This allows the juices to redistribute for a moist, tender bite.
Make Mushroom Sauce: While the beef rests, use the drippings in the skillet to sauté the mushrooms over medium heat until tender, about 5 to 7 minutes. Add the Marsala wine and chicken stock, stirring and reducing slightly. Stir in the thickened cream and simmer until the sauce thickens to your liking.
Serve: Slice the rested beef tenderloin thickly against the grain. Plate the slices and drizzle generously with the rich mushroom Marsala cream sauce. Serve immediately and enjoy.

Notes

Dry brining the beef overnight intensifies the flavor and improves texture.
Use a meat thermometer to ensure perfect doneness and avoid overcooking.
If you prefer, substitute vegetable oil with olive oil for searing.
Marsala wine can be replaced with dry white wine or a good quality stock for variation.
Letting the meat rest after roasting is crucial for juicy slices.
The mushroom sauce can be made ahead and gently reheated.