Slow Roasted Beef Tenderloin Recipe 🥩🔥

This Slow Roasted Beef Tenderloin is a show-stopping dish that’s surprisingly easy to make! With a perfect sear and a low-and-slow roast, this tender, juicy beef is infused with garlic, herbs, and savory spices. Ideal for special occasions or a luxurious family dinner, this recipe delivers melt-in-your-mouth flavor every time. Pair it with roasted veggies or creamy mashed potatoes for a meal that’s sure to impress!
Ingredients
- 1 whole beef tenderloin (3–4 lbs, trimmed)
- 3 tablespoons olive oil
- 4 cloves garlic, minced
- 2 teaspoons salt
- 1 teaspoon black pepper
- 1 teaspoon dried thyme (or fresh thyme sprigs for garnish)
- 1 teaspoon dried rosemary
- 1 teaspoon onion powder
Instructions
Step 1: Preheat the Oven
- Preheat your oven to 250°F (120°C) for a slow roast that ensures a tender, juicy result.
Step 2: Prepare the Beef
- Pat the beef tenderloin dry with paper towels to ensure a good sear.
- In a small bowl, mix olive oil, minced garlic, salt, black pepper, thyme, rosemary, and onion powder.
- Rub the mixture evenly over the entire surface of the beef.
Step 3: Sear for Flavor
- Heat a large skillet over medium-high heat. Add a drizzle of oil if needed.
- Sear the beef on all sides for 2–3 minutes per side until a golden-brown crust forms.
Step 4: Slow Roast
- Place the seared beef on a rack in a roasting pan to allow even cooking.
- Roast in the preheated oven for 1.5–2 hours, or until the internal temperature reaches:
- 125°F (52°C) for medium-rare
- 135°F (57°C) for medium
- Use a meat thermometer to check the temperature for accuracy.
Step 5: Rest the Beef
- Remove the beef from the oven and cover loosely with aluminum foil.
- Let it rest for 15 minutes to allow the juices to redistribute.
Step 6: Garnish and Serve
- Slice the tenderloin into thick medallions.
- Garnish with fresh thyme sprigs if desired.
- Serve warm with sides like roasted vegetables, mashed potatoes, or a fresh green salad.
Serving Suggestions
- With Sides: Pair with roasted root vegetables, garlic mashed potatoes, or sautéed green beans for a complete meal.
- Sauces: Serve with a red wine reduction, creamy horseradish sauce, or chimichurri for extra flavor.
- Occasions: Perfect for holiday dinners, special celebrations, or an elegant date night at home.
Storage Tips
- Refrigerate: Store leftovers in an airtight container in the fridge for up to 3–4 days.
- Reheat: Gently reheat in the oven at 250°F (120°C) to avoid overcooking, or slice and use cold in sandwiches.
- Freeze: Wrap tightly in plastic wrap and foil, then freeze for up to 2 months. Thaw in the fridge before reheating.
Nutritional Information (Per Serving, Approx.)
- Calories: 300–350 kcal (based on 6 oz serving)
- Protein: 35 g
- Carbohydrates: 1 g
- Fat: 18 g
- Fiber: 0 g
Note: Nutritional values are approximate and vary based on portion size and specific ingredients.
Why You’ll Love This Recipe
- Tender and Juicy: The slow roasting method ensures a perfectly cooked, melt-in-your-mouth tenderloin.
- Flavorful: The garlic-herb rub and sear lock in rich, savory flavors.
- Impressive yet Easy: Looks gourmet but requires minimal prep and simple ingredients.
- Versatile: Great for both casual and formal occasions.
Health Benefits
- High in Protein: Beef tenderloin is a lean, protein-packed cut that supports muscle health.
- Nutrient-Rich: Provides iron, zinc, and B vitamins for energy and immune support.
- Low-Carb: Perfect for low-carb or keto diets when paired with veggie sides.
Cooking Tips
- Use a Meat Thermometer: Ensures perfect doneness without overcooking.
- Room Temperature Beef: Let the tenderloin sit at room temperature for 30 minutes before cooking for even roasting.
- Trim Properly: Remove excess fat and silverskin for the best texture.
- Don’t Skip the Rest: Resting the beef prevents juice loss and keeps it moist.
Recipe Variations
- Herb Swap: Try fresh rosemary or oregano instead of dried herbs for a bolder flavor.
- Spicy Kick: Add a pinch of cayenne or smoked paprika to the rub for heat.
- Garlic Butter Finish: Brush with garlic butter after roasting for extra richness.
- Bacon-Wrapped: Wrap the tenderloin in bacon before roasting for a smoky twist.
FAQs
- What’s the best cut for beef tenderloin?
Choose a center-cut tenderloin for uniform thickness and even cooking. - Can I use a different oven temperature?
Slow roasting at 250°F is ideal for tenderness, but you can roast at 275°F to reduce cooking time slightly. - How do I know when it’s done?
Use a meat thermometer to check the internal temperature (125°F for medium-rare, 135°F for medium). - Can I make it without searing?
Searing enhances flavor and texture, but you can skip it and roast directly for a simpler prep. - What if I don’t have a roasting rack?
Place the beef on a bed of sliced onions or carrots in the pan to elevate it. - Can I make it in advance?
Sear and season the beef a day ahead, then refrigerate. Roast before serving. - Can I use fresh herbs instead of dried?
Yes, use 1 tablespoon of fresh herbs for every 1 teaspoon of dried. - What sides pair well?
Try roasted asparagus, creamy mashed potatoes, or a fresh arugula salad. - Can I freeze leftovers?
Yes, wrap tightly and freeze for up to 2 months; thaw in the fridge before reheating. - How do I keep it juicy?
Don’t skip the resting step, and avoid overcooking by checking the temperature.
Conclusion
This Slow Roasted Beef Tenderloin is the ultimate way to enjoy a tender, flavorful cut of beef with minimal effort. The garlic-herb rub and slow roasting create a juicy, melt-in-your-mouth dish that’s perfect for any special occasion or cozy family dinner. Serve it with your favorite sides and watch it steal the show. Try this recipe and elevate your next meal to gourmet status!
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