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A beautifully plated roast of Mary Berry’s Rugby Lamb, sliced and served with golden potatoes, fresh herbs, and a rich gravy.

Mary Berry’s Rugby Lamb Recipe – Classic British Roast with a Modern Herb Twist

Mary Berry’s Rugby Lamb is a timeless British classic—tender, slow-roasted lamb infused with garlic, rosemary, and a rich, savory glaze. This version adds a modern twist with a hint of citrus and a bold herb crust, elevating the traditional Sunday roast to something truly special. Perfect for holiday feasts, family dinners, or celebratory gatherings, this dish is a showstopper that’s surprisingly simple to prepare. Serve it with roasted root vegetables or creamy mash for a meal that’s both comforting and elegant.
Prep Time 30 minutes
Cook Time 3 hours 30 minutes
Total Time 4 hours 5 minutes
Course Main Course
Cuisine British, Modern European
Servings 8
Calories 550 kcal

Equipment

  • Heavy-bottomed roasting pan or Dutch oven
  • Sharp knife and cutting board
  • Tongs or meat fork
  • Measuring Cups and Spoons
  • Foil (for resting)
  • Optional: slow cooker

Ingredients
  

Lamb & Aromatics

  • 1.5–2 kg lamb shoulder or leg (bone-in or boneless)
  • 2 leeks, sliced
  • 4 garlic cloves, minced
  • 1 red pepper, diced
  • 2 tbsp olive oil
  • Salt and pepper to taste

Sauce Base

  • 400 ml passata
  • 250 ml lamb or vegetable stock
  • 2 tbsp balsamic glaze
  • 1 tsp cumin (optional)
  • ½ tsp cayenne pepper (optional)

Herbs

  • 2 tsp dried rosemary
  • 2 tsp dried thyme
  • Fresh parsley or thyme for garnish

Instructions
 

  • Prep the Lamb: Trim excess fat and score the surface. Season with salt, pepper, rosemary, and thyme.
  • Sear the Lamb: Heat olive oil in a heavy pan. Sear lamb on all sides until browned. Remove and set aside.
  • Build the Sauce: In the same pan, sauté leeks, garlic, and red pepper until softened. Add passata, stock, balsamic glaze, cumin, and cayenne. Stir well.
  • Combine & Roast: Return lamb to the pan, spoon sauce over it, cover, and roast at 160°C (320°F) for 3.5–4 hours.
  • Rest & Serve: Let lamb rest under foil for 20 minutes. Skim fat from sauce, adjust seasoning, and garnish with fresh herbs.
  • Serving Suggestion: Serve with mashed potatoes, roasted vegetables, or Yorkshire pudding.

Notes

  • Cut Choice: Shoulder is juicier; leg is leaner and easier to carve.
  • Slow Cooker Option: After searing, cook on low for 6–8 hours.
  • Dietary Tweaks: Use gluten-free stock and skip cayenne for milder taste.
  • Storage: Refrigerate leftovers for 3 days or freeze for up to 3 months.
  • Reheat Gently: Add a splash of stock to retain moisture.
 
Keyword British roast, festive lamb, herb lamb, Mary Berry, rugby lamb, slow-roasted lamb, tomato balsamic lamb