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Slow-Roasted Andalusian-Style Lamb and Potatoes

This slow-roasted Andalusian-style lamb and potatoes is a beautiful example of Spanish-inspired comfort food. By nesting a bone-in leg of lamb amongst layers of thinly sliced potatoes, onions and vine-ripened tomatoes, the meat stays incredibly succulent while the vegetables absorb the rich, savoury juices and dry white wine. It is a fragrant, rustic dish that fills the kitchen with the aroma of garlic and fresh thyme as it slowly tenderises in the oven.

As a high-protein main course, this recipe is perfect for Sunday lunch or a relaxed dinner party where most of the work happens well before guests arrive. The long roasting time ensures the meat effortlessly pulls away from the bone, creating a dish that is both impressive and simple to serve. Garnish with a little extra fresh thyme for a vibrant finish.

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Ingredients for Slow-Roasted Andalusian-Style Lamb and Potatoes

  • 4 garlic cloves, crushed

  • 2 tablespoons fresh thyme leaves

  • 2 tablespoons kosher salt plus more

  • 4 fresh bay leaves, divided

  • 1.4kg Yukon Gold potatoes (6-8), peeled, cut into 1/4" slices, divided

  • 7 tablespoons olive oil, divided

  • Freshly ground black pepper

  • 1 3 1/2- to 1.8kg bone-in leg of lamb

  • 900g tomatoes, cut into 1/4" slices

  • 2 medium onions, cut into 1/2" slices

  • 475ml dry white wine

Preheat oven to 177°C. Combine garlic, thyme, and 2 tablespoons salt in a small bowl. Using your fingertips, rub mixture until it resembles wet sand (larger pieces of garlic will remain); set aside. Crush bay leaves.

Combine half of potatoes with 1 tablespoon oil and 1 crushed bay leaf in a large roasting pan; season with salt and pepper and toss to coat. Spread out potatoes in a single layer.

Place lamb on top of potatoes and rub with garlic mixture. Layer tomatoes, onions, remaining 3 crushed bay leaves, and remaining potatoes around and up sides of lamb, seasoning with salt and pepper and drizzling with remaining 90ml oil as you go (lamb will be nearly covered). Add wine to pan; cover tightly with foil.

Roast until lamb is very tender, 3-4 hours. Remove foil and increase oven temperature to 218°C. Roast, turning lamb halfway through, until lamb is golden, 20-25 minutes longer. Let rest in roasting pan for 15-20 minutes. DO AHEAD: Lamb can be roasted 2 days ahead. Cover and chill. Reheat before continuing.

Pull meat from bones in large chunks; discard bones and fat. Place meat and vegetables on a platter. Skim fat from surface of cooking juices in pan. Spoon some cooking juices over lamb and vegetables and serve remainder alongside.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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