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Roasted Beef Tenderloin with French Onions and Horseradish Sauce: The Showstopper You Need

Are you ready to impress at your next dinner gathering or simply want to treat yourself to a fabulous meal? Look no further than this Roasted Beef Tenderloin with French Onions and Horseradish Sauce! It’s rich, succulent, and oh-so-elegant while remaining surprisingly simple to prepare. Perfect for busy moms, professionals, or anyone looking to create that “restaurant-at-home” vibe, this dish will surely be a hit.

Why You’ll Love This Roasted Beef Tenderloin

First things first—what’s not to love about a beautifully roasted beef tenderloin? It’s tender, flavorful, and perfect for serving up at special occasions or just a Saturday night in with the family (I mean, who says we can’t treat ourselves every now and then?!). The addition of French onions adds a delightful sweetness and texture that complements the beef beautifully, while the zesty horseradish sauce gives it a lip-smacking kick. Trust me when I say this dish will make your kitchen smell like heaven on a rainy day!

So, grab your apron, and let’s get cooking!

Ingredients

For the Roasted Beef Tenderloin:

2 lb beef tenderloin, trimmed
Salt and pepper, to taste
2 tablespoons olive oil
2 cups French-fried onions (store-bought or homemade)

For the Horseradish Sauce:

1/2 cup sour cream
2 tablespoons prepared horseradish
1 tablespoon fresh lemon juice
Salt, to taste

Step-by-Step Instructions

Preparing the Beef Tenderloin

Preheat Your Oven: Start by preheating your oven to 425°F (220°C). This high temperature is what gives the beef that beautiful, caramelized crust!
Season the Beef: Season your trimmed beef tenderloin generously with salt and pepper. This is crucial—don’t be shy with it!
Sear the Beef: In an oven-safe skillet, heat the olive oil over medium-high heat. Add the beef tenderloin and sear it for about 3-4 minutes on each side, or until all sides are golden brown. Not only does this add flavor, but it also locks in those juicy juices!

Roasting the Tenderloin

Topping with Onions: Once your beef is beautifully seared, remove it from the skillet. Top the tenderloin with the French-fried onions, pressing them gently into the meat. This will create a crunchy, delicious layer that contrasts wonderfully with the tender beef.
In the Oven: Transfer the skillet to the preheated oven and roast for about 25-30 minutes, or until the internal temperature reaches 135°F (medium-rare). Use a meat thermometer for the best results!
Rest Your Meat: After removing it from the oven, let the beef rest for about 10 minutes. This is important for keeping it juicy—don’t skip this step, or you might have a sad, dry tenderloin!

Preparing the Horseradish Sauce

Mix It Up: In a small bowl, combine sour cream, prepared horseradish, lemon juice, and a pinch of salt. Stir well and adjust the seasoning to your taste. This sauce adds a delightful zing and rounds out the dish perfectly.

Serving It Up

Slice and Serve: Now it’s time to slice that bad boy up! Cut the beef tenderloin into thick slices and arrange them on a platter. Drizzle with a bit of the horseradish sauce, and serve the rest on the side.

Cooking Tips

Resting Is Key: As I mentioned, allow your beef to rest! It’s like a mini vacation for your tenderloin, helping keep it juicy and flavorful.
Personalize Your Sauce: Not a fan of horseradish? You can substitute it with mustard or leave it out entirely!
Make Ahead: You can prep the horseradish sauce a day in advance. This way, you can spend more time with your guests and less time in the kitchen!

FAQs

Can I substitute the beef tenderloin?
If you want something a bit more budget-friendly, a beef sirloin or top round roast would work well, just adjust your cooking time accordingly.

How do I store leftovers?
Store any leftover beef in an airtight container in the fridge for up to 3 days. Reheat gently to avoid drying out the meat!

The Perfect Dinner Awaits

This Roasted Beef Tenderloin with French Onions and Horseradish Sauce is more than just a meal; it’s a celebration of flavors and textures that’s sure to bring smiles to your table.

So next time you’re scratching your head about what to make for dinner—or you simply want to wow your special someone—give this roast a try. I promise it’ll become a staple in your kitchen just like it has in mine! And remember, cooking is all about joy, laughter, and a little bit of love—after all, it’s those memories that matter most.

Feel free to check out more delicious recipes on my blog, and let’s keep this culinary adventure going together! Happy cooking!

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