This Beef Tenderloin with Mushroom Sauce puts the “special” in special occasions! An impressive main dish, melt-in-your-mouth roasted tenderloin is served with an easy and creamy mushroom sauce. It’s a dinner that’s sure to ‘wow’ your guests for events, holidays, and celebrations.
Put your beef on the cookie sheet on top of the cooling rack while you prepare your rub.
Add the chopped rosemary, 1 tablespoon thyme, 4 cloves chopped garlic, 1 ½ teaspoons salt and 4 tablespoons of olive oil into a small bowl and whisk together.
Pat the beef dry and then rub the rub all over the beef.
Bake for 22-30 minutes for medium-rare doneness (130˚F to 140˚F) or to desired doneness, check using a meat thermometer. (Note: Remove from the oven 5-10 degrees before the roast reaches your desired temperature (the temperature will continue to rise as it rests). Transfer roast to a cutting board, loosely tent with foil and rest for 15 minutes then slice. While the beef is baking, make your mushroom sauce.
Heat a medium pan to medium high heat. Add butter and 1 tablespoon of olive oil, then add the onions, cook for 5 minutes until translucent, then add the mushrooms, sautee for 5 minutes. Add 1 teaspoon of salt, garlic and thyme, cook for an additional 1 minute.
Turn the heat to low. Add ½ cup heavy cream and mustard, stir to combine, add remaining heavy cream and stir to combine. Let it cook for 2-3 minutes to thicken.
Add mushroom sauce on the bottom of the serving platter, then add the beef, sprinkle with fresh thyme or parsley. Serve with your favorite side and a glass of Cabernet Sauvignon.
Notes
Bring the beef to room temperature before roasting. This helps it cook evenly and stay tender throughout.
Pat the beef dry before adding the herb rub. A dry surface ensures a better crust and deeper flavor.
Use a meat thermometer. It’s the most reliable way to get your preferred doneness without overcooking.
Let the beef rest before slicing. Resting allows the juices to redistribute, keeping every slice juicy.
Slice against the grain. This makes the meat more tender and easier to chew.
Don’t overcrowd the pan when cooking mushrooms. Give them space so they brown instead of steaming.
Deglaze the pan if needed. A splash of broth or wine lifts any flavorful bits stuck to the bottom and enriches the sauce.
Adjust the cream to your liking. For a lighter sauce, use half cream and half broth; for extra richness, add a little more cream.
Make the sauce while the beef rests. It saves time and ensures everything is ready to serve together.
Reheat leftovers gently. Warm them over low heat with a bit of cream or broth to keep the sauce smooth and the beef tender.
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