Roast Lamb with Rosemary Jus

Highlighted under: Celebratory Feast Recipes

Delight in the succulent flavors of Roast Lamb with Rosemary Jus, a dish that brings elegance to your dining table.

Emily

Created by

Emily

Last updated on 2025-12-12T18:57:00.656Z

This Roast Lamb with Rosemary Jus is perfect for special occasions and family gatherings. The combination of tender lamb and aromatic rosemary creates an unforgettable dish.

Why You'll Love This Recipe

  • Tender and juicy lamb infused with fragrant rosemary
  • A rich jus that elevates the flavors of the meat
  • Impressive presentation for special occasions

Perfectly Roasted Lamb

Roasting a leg of lamb to perfection requires attention to detail and a bit of patience. The key to achieving that tender, juicy result lies in the seasoning and the cooking method. By rubbing the lamb with a mixture of garlic, fresh rosemary, and olive oil, you not only enhance its flavor but also create a beautiful crust that locks in moisture during roasting.

It's essential to monitor the internal temperature of the lamb as it roasts. For a medium-rare finish, aim for around 135°F (57°C). Use a meat thermometer to ensure accuracy, and remember that the lamb will continue to cook slightly after it’s removed from the oven. Allowing it to rest before slicing redistributes the juices, resulting in a more flavorful and moist dish.

The Art of Rosemary Jus

A well-made jus is the perfect companion for your roast lamb, adding depth and richness to each bite. The combination of red wine and beef stock creates a robust sauce that complements the lamb’s natural flavors beautifully. To start, bring the wine and stock to a boil and then reduce to a simmer to concentrate the flavors. This step is crucial as it enhances the overall taste profile of your dish.

If you prefer a thicker sauce, incorporating cornstarch is a great option. Mix it with a little water before adding it to the jus to prevent clumping. This simple technique transforms the liquid into a velvety sauce that clings to the lamb, making each serving a delightful experience. Fresh rosemary stirred in at the end adds that final touch of aromatic flavor.

Serving Suggestions

When it comes to serving your roast lamb, presentation is key. Slicing the lamb into thick, juicy pieces and arranging them on a platter not only looks inviting but also allows guests to appreciate the succulent texture of the meat. Drizzling the rosemary jus over the top adds a glossy finish that draws the eye and whets the appetite.

Pair your roast lamb with seasonal vegetables or a creamy potato dish for a well-rounded meal. Roasted root vegetables or a fresh green salad can complement the rich flavors of the lamb, while a side of garlic mashed potatoes provides a comforting element. Don’t forget a good bottle of red wine to tie the meal together!

Ingredients

For the Lamb

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

For the Rosemary Jus

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

Make sure to let the lamb rest before slicing for the juiciest results.

Instructions

Prepare the Lamb

Preheat your oven to 375°F (190°C). In a small bowl, mix the garlic, rosemary, olive oil, salt, and pepper. Rub this mixture all over the leg of lamb.

Roast the Lamb

Place the lamb in a roasting pan and insert it into the preheated oven. Roast for about 90 minutes or until the internal temperature reaches 135°F (57°C) for medium-rare.

Make the Rosemary Jus

In a saucepan, combine the red wine and beef stock. Bring to a boil and reduce to a simmer for about 15 minutes. If desired, mix cornstarch with a little water and add to the sauce to thicken.

Serve

Let the lamb rest for 15 minutes before slicing. Serve with the rosemary jus drizzled over the top.

Pair this dish with roasted vegetables or mashed potatoes for a complete meal.

Tips for Success

To ensure your roast lamb is a hit, consider marinating it the night before. This allows the flavors to penetrate the meat more deeply, resulting in a more flavorful dish. Simply combine your garlic and rosemary mixture with a bit of wine and let the lamb soak overnight in the refrigerator. This step is especially beneficial for larger cuts of meat.

Always allow your lamb to come to room temperature before roasting. This helps it cook evenly, reducing the risk of a dry exterior and undercooked interior. A good rule of thumb is to take the lamb out of the fridge about an hour before you plan to cook it.

Leftover Ideas

If you’re lucky enough to have leftover roast lamb, there are plenty of delicious ways to enjoy it. Consider slicing it thinly for sandwiches or wraps, pairing the meat with fresh vegetables and a tangy sauce for a quick lunch. Another option is to chop it into pieces and mix it with pasta, adding a light cream sauce or a drizzle of olive oil.

For a cozy dinner, use leftover lamb in a shepherd's pie. Combine it with vegetables and a savory sauce, then top with creamy mashed potatoes before baking until golden. This comforting dish makes for a delightful way to savor every last bite of your roast lamb.

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Questions About Recipes

→ Can I use a different cut of lamb?

Yes, you can use lamb shoulder or rack of lamb, but cooking times will vary.

→ What should I serve with roast lamb?

Roasted vegetables, potatoes, or a fresh salad work wonderfully.

→ Can I make the jus ahead of time?

Yes, you can prepare the jus in advance and reheat it before serving.

→ How do I know when the lamb is done?

Use a meat thermometer to check for an internal temperature of 135°F (57°C) for medium-rare.

Roast Lamb with Rosemary Jus

Delight in the succulent flavors of Roast Lamb with Rosemary Jus, a dish that brings elegance to your dining table.

Prep Time20 minutes
Cooking Duration90 minutes
Overall Time110 minutes

Created by: Emily

Recipe Type: Celebratory Feast Recipes

Skill Level: Intermediate

Final Quantity: 4 servings

What You'll Need

For the Lamb

  1. 1 leg of lamb (about 4 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. 1 cup red wine
  2. 2 cups beef stock
  3. 1 tablespoon cornstarch (optional, for thickening)
  4. 1 tablespoon fresh rosemary, chopped

How-To Steps

Step 01

Preheat your oven to 375°F (190°C). In a small bowl, mix the garlic, rosemary, olive oil, salt, and pepper. Rub this mixture all over the leg of lamb.

Step 02

Place the lamb in a roasting pan and insert it into the preheated oven. Roast for about 90 minutes or until the internal temperature reaches 135°F (57°C) for medium-rare.

Step 03

In a saucepan, combine the red wine and beef stock. Bring to a boil and reduce to a simmer for about 15 minutes. If desired, mix cornstarch with a little water and add to the sauce to thicken.

Step 04

Let the lamb rest for 15 minutes before slicing. Serve with the rosemary jus drizzled over the top.

Nutritional Breakdown (Per Serving)

  • Calories: 720 kcal
  • Total Fat: 45g
  • Saturated Fat: 20g
  • Cholesterol: 140mg
  • Sodium: 500mg
  • Total Carbohydrates: 8g
  • Dietary Fiber: 1g
  • Sugars: 1g
  • Protein: 70g