Slow Cooked Leg of Lamb - Perfect Mechoui Roast

Get ready to transform your kitchen into a haven of incredible aromas and flavors with our Mechoui-Style Slow-Roasted Leg of Lamb (or Goat!). If you've been searching for the best roast lamb recipe that delivers fall-apart tender meat with crispy, deeply seasoned edges, you've hit the jackpot. This isn't just another leg of lamb recipe oven method; it's a foolproof guide to achieving that legendary, melt-in-your-mouth texture you dream of. Whether you're a beginner tackling your first whole leg of lamb or an experienced cook looking for a new slow cooked lamb recipe, we'll walk you through every step to create a memorable, show-stopping meal. Say goodbye to dry, tough roasts and hello to the most succulent, flavorful slow cooked leg of lamb you've ever tasted!

Ingredients

• For the Seasoning Paste/Rub:
• 6-8 cloves garlic, minced or pressed into a paste (plus optional slivers for stuffing)
• 2 tablespoons kosher salt
• 1 tablespoon freshly ground black pepper
• 2 tablespoons ground cumin
• 1 tablespoon ground coriander
• 1 tablespoon smoked or sweet paprika
• Zest of 1 large lemon
• 2 tablespoons fresh lemon juice
• 1/4 cup olive oil
• For the Roasting Pan:
• 1 large onion, cut into thick slices (about 1/2-inch)
• 2 lbs potatoes, cut into large chunks (optional but recommended)
• 2 cups broth (chicken or vegetable) or water
• Optional Finishing Touch:
• 2 sprigs fresh rosemary or thyme (or 1 tablespoon chopped fresh herbs)
• 1 tablespoon harissa mixed into pan juices (if not using fresh herbs)

Directions

1. Prep Your Roast:
   1. Carefully trim any excess thick surface fat from your lamb or goat leg, leaving a thin layer (about 1/4 inch) for flavor and moisture.
   2. Using a sharp knife, score the fat cap in a shallow crosshatch pattern (don't cut too deep into the meat). This helps the seasoning penetrate and renders the fat nicely.
   3. If your roast is boneless or irregularly shaped, tie it tightly with butcher's twine at 1-2 inch intervals. This ensures even cooking.
2. Make the Seasoning Paste: In a small bowl, combine the minced garlic (and optional slivers), kosher salt, black pepper, ground cumin, ground coriander, smoked or sweet paprika, lemon zest, lemon juice, and olive oil. Mix well until it forms a thick paste.
3. Season the Roast: Generously rub the seasoning paste all over the entire surface of the lamb or goat, making sure to get into the scored areas. For best results, marinate the roast in the refrigerator for at least 4 hours, or ideally overnight (up to 24 hours). If short on time, even 30 minutes at room temperature will make a difference.
4. Set Up the Pan: Preheat your oven to 300°F (150°C). Arrange the thick onion slices in a single layer at the bottom of a sturdy roasting pan, creating a natural rack for the meat. If using, scatter the potato chunks around the onion slices.
5. Add Liquid: Pour the broth or water into the bottom of the roasting pan. This creates steam for moisture and protects the drippings from burning, forming a delicious base for your "sauce."
6. Covered Slow Roast: Place the seasoned lamb or goat on top of the onion rack in the roasting pan. Cover the pan tightly with foil. Roast in the preheated oven for 2.5 to 3.5 hours, depending on the size of your roast and whether it's lamb or goat.
   1. Check for Tenderness: After about 2.5 hours, start checking the internal temperature with a meat thermometer. For "sliceable" lamb, you're aiming for 145-160°F. For traditional "Mechoui-style" pull-apart tender meat, you want to reach 190-200°F. You can also test tenderness by gently inserting a fork; it should go in with little resistance.
7. Uncover and Brown: Once the roast is approaching your desired internal temperature and tenderness, remove the foil. Increase the oven temperature to 400°F (200°C). Continue roasting for another 20-30 minutes, or until the exterior is beautifully browned and crispy. If the drippings look like they're drying out or burning, add another splash of water or broth to the pan.
8. Rest and Carve: Carefully remove the roast from the oven and transfer it to a cutting board. Tent it loosely with foil and let it rest for at least 30-45 minutes. This crucial step allows the juices to redistribute, ensuring a tender, moist result.
   1. Carving: For sliceable lamb, slice against the grain. For pull-apart Mechoui-style, use two forks to shred the meat directly from the bone.
9. Serve: Spoon the delicious pan juices over the carved meat and potatoes. If desired, stir in a spoon of harissa or sprinkle with fresh herbs like rosemary or thyme.