Roast Lamb with Rosemary Jus

Highlighted under: Classic Comfort Dishes

Enjoy a succulent roast lamb infused with the fragrant flavors of rosemary and served with a rich jus.

Ella

Created by

Ella

Last updated on 2025-12-12T19:26:50.201Z

This Roast Lamb with Rosemary Jus is a classic dish that evokes warmth and comfort, perfect for family gatherings or special occasions. The combination of tender lamb and aromatic rosemary creates a delightful flavor profile that will impress your guests.

Why You'll Love This Recipe

  • Tender, juicy lamb that falls off the bone
  • Fragrant rosemary elevates the dish to gourmet levels
  • A perfect centerpiece for any festive occasion

The Perfect Roast

Roasting a leg of lamb is a culinary tradition that brings warmth and comfort to any dining table. This method not only enhances the natural flavors of the meat but also fills your home with an irresistible aroma that beckons family and friends to gather around. The high heat of the oven creates a beautifully browned crust, sealing in the juices for a tender and succulent roast that is sure to impress.

To achieve the perfect roast, the quality of the lamb is paramount. Look for a leg that has a good amount of marbling, as this fat will render during cooking, keeping the meat moist and flavorful. Additionally, allowing the lamb to come to room temperature before roasting ensures even cooking, resulting in a perfectly tender outcome.

The Magic of Rosemary

Rosemary is more than just a herb; it’s a flavor enhancer that pairs beautifully with lamb. Its earthy, pine-like notes complement the rich taste of the meat, creating a harmonious balance that elevates the dish to gourmet status. Fresh rosemary, in particular, brings a vibrant flavor that dried herbs can't replicate, making it worth the extra effort.

Incorporating rosemary into the marinade not only infuses the lamb with its aromatic qualities but also provides a fragrant backdrop for the jus. As the lamb roasts, the oils from the rosemary are released, mingling with the meat’s juices to create a flavorful base for the sauce. This careful layering of flavors is what makes this roast lamb dish truly unforgettable.

Serving Suggestions

When it comes to serving roast lamb, presentation is key. Consider garnishing the platter with fresh rosemary sprigs and seasonal vegetables for a colorful display. Roasted root vegetables, such as carrots and potatoes, complement the lamb beautifully, adding sweetness and texture to the meal. Additionally, a side of creamy mashed potatoes or a fresh green salad can elevate the dining experience.

Don’t forget about the jus! Drizzling this rich sauce over each slice of lamb not only enhances the flavor but also adds a touch of elegance. For a complete meal, pair your roast lamb with a bold red wine, which will further enhance the flavors and create a memorable dining experience.

Ingredients

For the Lamb

  • 1 whole leg of lamb (about 5-6 lbs)
  • 4 cloves garlic, minced
  • 2 tablespoons fresh rosemary, chopped
  • 2 tablespoons olive oil
  • Salt and pepper to taste

For the Rosemary Jus

  • 2 cups beef broth
  • 1/2 cup red wine
  • 1 tablespoon cornstarch (optional, for thickening)
  • 1 tablespoon fresh rosemary, chopped

Make sure to use fresh herbs for the best flavor!

Instructions

Prepare the Lamb

Preheat your oven to 400°F (200°C). In a small bowl, mix the minced garlic, chopped rosemary, olive oil, salt, and pepper to create a marinade. Rub this mixture all over the leg of lamb.

Roast the Lamb

Place the lamb in a roasting pan and roast in the preheated oven for about 90 minutes, or until it reaches your desired level of doneness (145°F for medium-rare). Baste occasionally with its own juices.

Make the Jus

In a saucepan, combine the beef broth, red wine, and fresh rosemary. Bring to a simmer and cook for about 10 minutes. If you prefer a thicker jus, mix cornstarch with a bit of water and add to the saucepan, stirring until thickened.

Serve

Once the lamb is cooked, let it rest for 15 minutes before carving. Serve with the rosemary jus drizzled over the slices.

Enjoy your roast lamb with your favorite sides!

Tips for the Perfect Roast

To ensure your roast lamb turns out perfectly every time, invest in a good meat thermometer. This tool allows you to monitor the internal temperature, helping you achieve your desired doneness without overcooking. Remember, lamb continues to cook slightly after being removed from the oven, so aim for a temperature a few degrees lower than your target doneness.

Resting the lamb after roasting is crucial. This step allows the juices to redistribute throughout the meat, resulting in a juicier and more flavorful roast. Cover the lamb loosely with foil and let it rest for about 15 minutes before carving—this patience will reward you with a tender, succulent dish.

Leftover Ideas

If you find yourself with leftover lamb, don’t let it go to waste! Shred the meat and use it in hearty sandwiches or wraps, topped with fresh vegetables and a dollop of mint sauce for a refreshing twist. You can also add it to soups or stews for a flavorful boost, allowing the rich flavors of the roast to shine through.

Another delicious way to utilize leftover lamb is to create a savory shepherd's pie. Layer the shredded meat with vegetables and a creamy mashed potato topping for a comforting dish that’s perfect for weeknight dinners. The possibilities are endless with this versatile meat, making it a great option for meal prep.

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Questions About Recipes

→ Can I use other herbs besides rosemary?

Yes, thyme or oregano can also complement lamb beautifully.

→ What should I serve with roast lamb?

Roast vegetables, mashed potatoes, or a fresh salad pair well with lamb.

→ How do I store leftovers?

Store leftover lamb in an airtight container in the refrigerator for up to 3 days.

→ Can I freeze the roast lamb?

Yes, you can freeze cooked lamb for up to 3 months. Thaw in the refrigerator before reheating.

Roast Lamb with Rosemary Jus

Enjoy a succulent roast lamb infused with the fragrant flavors of rosemary and served with a rich jus.

Prep Time20 minutes
Cooking Duration90 minutes
Overall Time110 minutes

Created by: Ella

Recipe Type: Classic Comfort Dishes

Skill Level: Intermediate

Final Quantity: Serves 6

What You'll Need

For the Lamb

  1. 1 whole leg of lamb (about 5-6 lbs)
  2. 4 cloves garlic, minced
  3. 2 tablespoons fresh rosemary, chopped
  4. 2 tablespoons olive oil
  5. Salt and pepper to taste

For the Rosemary Jus

  1. 2 cups beef broth
  2. 1/2 cup red wine
  3. 1 tablespoon cornstarch (optional, for thickening)
  4. 1 tablespoon fresh rosemary, chopped

How-To Steps

Step 01

Preheat your oven to 400°F (200°C). In a small bowl, mix the minced garlic, chopped rosemary, olive oil, salt, and pepper to create a marinade. Rub this mixture all over the leg of lamb.

Step 02

Place the lamb in a roasting pan and roast in the preheated oven for about 90 minutes, or until it reaches your desired level of doneness (145°F for medium-rare). Baste occasionally with its own juices.

Step 03

In a saucepan, combine the beef broth, red wine, and fresh rosemary. Bring to a simmer and cook for about 10 minutes. If you prefer a thicker jus, mix cornstarch with a bit of water and add to the saucepan, stirring until thickened.

Step 04

Once the lamb is cooked, let it rest for 15 minutes before carving. Serve with the rosemary jus drizzled over the slices.

Nutritional Breakdown (Per Serving)

  • Calories: 450 kcal
  • Total Fat: 28g
  • Saturated Fat: 10g
  • Cholesterol: 135mg
  • Sodium: 200mg
  • Total Carbohydrates: 5g
  • Dietary Fiber: 0g
  • Sugars: 1g
  • Protein: 45g