Name: loin with Caramelized Onions and Horsera Recipe
Prep time: 30 min
Cook time: 1 h 30 min
Total time: 2 h
Cuisine: American
Ingredients: Olive oil, as needed; 3 tablespoons butter; 2 1/2 lbs thinly sliced onions; Kosher salt, to taste; Freshly cracked black pepper, to taste; 2 large fresh thyme sprigs; 2 large fresh rosemary sprigs; 1 bay leaf; 1/4 cup sherry wine; 6 oz mayonnaise; 6 oz sour cream; 3 oz prepared horseradish; 1/2 lemon, zested and juiced; 3 lbs trimmed whole beef tenderloin; 1 tablespoon kosher salt; 1 tablespoon granulated garlic; 2 teaspoons freshly cracked black pepper; Fresh thyme leaves, for garnish

Description

Impress your guests with this sumptuous Roasted Beef Tenderloin dish, paired with lusciously caramelized onions and a zesty horseradish sauce. Perfect for special occasions or a delicious dinner at home.

Ingredients

Caramelized Onions:

Olive oil, as needed
3 tablespoons butter
2 1/2 lbs thinly sliced onions
Kosher salt, to taste
Freshly cracked black pepper, to taste
2 large fresh thyme sprigs
2 large fresh rosemary sprigs
1 bay leaf
1/4 cup sherry wine

Horseradish Sauce:

6 oz mayonnaise
6 oz sour cream
3 oz prepared horseradish
1/2 lemon, zested and juiced

Beef Tenderloin:

3 lbs trimmed whole beef tenderloin
1 tablespoon kosher salt
1 tablespoon granulated garlic
2 teaspoons freshly cracked black pepper
Fresh thyme leaves, for garnish

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Instructions

Prepare the Caramelized Onions: Heat olive oil and butter in a large pot over medium-high heat. Add onions, season with salt and pepper, and cook 10 minutes, stirring frequently. Reduce heat to medium-low, add thyme, rosemary, and bay leaf. Cook about 45 minutes until soft and caramelized. Stir in sherry wine and simmer 15 minutes. Remove herbs and adjust seasoning. Keep warm.
Prepare the Horseradish Sauce: In a bowl, mix mayonnaise, sour cream, horseradish, lemon zest, and juice. Whisk until smooth and season with salt and pepper. Chill until serving.
Roast the Beef Tenderloin: Preheat oven to 450°F (230°C). Place beef on a rack in a sheet pan. Pat dry and let rest at room temperature 20 minutes. Drizzle with olive oil and rub in. Sprinkle with salt, granulated garlic, and black pepper. Roast 30 minutes or until thermometer reads 135°F for medium-rare. Cover with foil and rest 15 minutes.
Slice and Serve: Slice beef into 1/4-inch pieces. Serve with caramelized onions and horseradish sauce. Garnish with fresh thyme.

Nutrition

Serving Size: 1 serving
Calories: 590
Sugar: 8g
Sodium: 780mg
Fat: 42g
Saturated Fat: 15g
Unsaturated Fat: 23g
Trans Fat: 0g
Carbohydrates: 10g
Fiber: 2g
Protein: 45g
Cholesterol: 150mg