Spiced Lamb Roast

Masala Lamb Leg Roast

Ajc Cooks Style – Tender, slow-roasted lamb infused with aromatic Indian spices.
This Spiced Lamb Leg Roast, also known as Masala Lamb Roast, is a luxurious centrepiece dish made for special occasions, festive gatherings, and celebratory dinners. Marinated overnight in yoghurt, fried onions, whole spices, and freshly ground garam masala, the lamb is slow-roasted until deeply flavoured and irresistibly tender.
Cooked low and slow, the meat becomes rich, juicy, and so soft it effortlessly pulls away from the bone. The natural roasting juices form a deeply spiced gravy that elevates every bite – no additional sauce required.
This is a traditional-style recipe with restaurant-quality results, yet it requires minimal effort once the lamb is in the oven.
Prep Time 30 minutes
Cook Time 4 hours 30 minutes
Resting time 30 minutes
Total Time 5 hours 30 minutes
Course Main Course
Cuisine South Asian
Servings 6

Ingredients
  

  • 1 Leg of Lamb (I used baby lamb leg"1.5kg", not mutton leg)
  • 1/4 cup Yoghurt (plain/greek yogurt)
  • 1/3 cup Olive oil (extra virgin or any cooking oil)
  • 1 cup Fried onions (barista/beresta)
  • 1 tablespoon Salt (adjust to taste)
  • 1 tablespoon Chilli Powder (adjust to taste)
  • 6-8 Green chillies
  • 5-6 Garlic cloves
  • 1 Cinnamon stick
  • 5-6 Green cardamom pods
  • 1 Black cardamom pod
  • 1 Star anise
  • 2-4 Bay leaves
  • 1 Mace
  • 1 teaspoon Black peppercorns (roughly 10-15)
  • 1 teaspoon Cumin seeds
  • 1 teaspoon Black cumin (sahi jeera)
  • 1 tablespoon Freshly ground garam masala
  • 1/4 cup Lemon Juice (half lemon)
  • 1 cup Hot water or broth (if needed)

Instructions
 

  • Thinly slice two medium onions using a peeler or mandoline. Fry until golden brown, stirring frequently. Do not overcook. Set aside.
  • Trim excess fat and remove sinew from the lamb leg using a sharp knife.
  • Pat dry thoroughly with paper towels.
  • Using a sharp knife, make deep slashes all over the lamb to help the marinade penetrate.

Marinade Preparation

  • In a large roasting or baking dish, combine yoghurt, olive oil, fried onions, salt, chilli powder, green chillies, garlic, lemon juice, garam masala, and all whole spices.
  • Mix well to form a thick, aromatic marinade.
  • Add the lamb leg and massage the marinade thoroughly into the meat, ensuring it reaches deep into the slashes.
  • Cover tightly and refrigerate overnight for best results.

Roasting Instructions

  • Remove the lamb from the refrigerator 1–2 hours before cooking to bring it to room temperature.
  • Preheat the oven to 325°F (160°C).
  • Cover the roasting pan tightly with foil and place in the oven.
  • Roast for 40–45 minutes per pound (450 g), turning the lamb occasionally for even cooking.
  • If needed, add up to 1 cup hot water or broth—only if the pan looks dry.
  • Continue roasting until the internal temperature reaches 175°F–205°F (80°C–96°C).
  • Remove from oven and rest, covered, for 20–30 minutes.
  • Spoon the roasting juices over the lamb before serving.

Cooking Guidelines

  • Oven Temperature: 325°F (160°C)
  • Gas Mark: 3
  • Cooking Time: 40–45 minutes per 450 g (1 lb)
  • Total Time: 4–6 hours
  • Internal Temperature: 175°F–205°F (80°C–96°C)

Tips for Perfect Results

  • Always use a meat thermometer
  • Keep the lamb covered for most of the roasting time
  • Cook slowly—this is key to tenderness
  • The bone should pull out easily when done
  • Resting the lamb is essential for juicy meat

Serving Suggestions

  • Serve with Steamed basmati rice or saffron rice
  • Naan, roti, or paratha
  • Crisp salad or roasted vegetables
  • Leftovers taste even better the next day and can be shredded for wraps or rice dishes.

Notes

🧮 Nutrition Information:
Serving Size: 1 portion
Servings: 6
  • Calories: ~620 kcal
  • Protein: 42 g
  • Fat: 48 g
  • Saturated Fat: 14 g
  • Carbohydrates: 6 g
  • Fiber: 1 g
  • Sugar: 2 g
  • Sodium: ~720 mg
(Values are approximate and will vary based on lamb size and fat content.)
Keyword British Lamb Roast, Festive food, Indian lamb roast recipe, Masala lamb leg roast, Party Feast, Slow roasted lamb leg, Spiced lamb roast

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