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Grilled Leg of Lamb with Ancho Chilli Marinade

This grilled leg of lamb with ancho chilli marinade is a sophisticated choice for outdoor dining, offering a deep, smoky flavour profile without excessive heat. The marinade uses dried ancho chillies to provide a mild, fruity richness that complements the natural sweetness of the lamb. By marinating the meat overnight, you ensure every slice is tender and infused with aromatic notes of garlic, oregano, and lemon.

As a diabetes-friendly main course, this dish focuses on high-quality lean protein and heart-healthy fats from extra-virgin olive oil. Slow-releasing flavours and a careful balance of seasoning make it a healthy yet indulgent option for a weekend gathering. Serve it with a crisp green salad or roasted Mediterranean vegetables for a balanced, low-carbohydrate meal that feels truly special.

Continue reading below

Ingredients for Grilled Leg of Lamb with Ancho Chilli Marinade

  • 120ml dry white wine

  • 60ml extra-virgin olive oil

  • 8 garlic cloves, peeled

  • 4 tablespoons fresh oregano leaves, divided

  • 3 tablespoons ancho chilli powder*

  • 2 tablespoons fresh lemon juice

  • 2 spring onions, divided

  • 1 tablespoon (packed) dark brown sugar

  • 2 1/2 teaspoons coarse kosher salt

  • 2 1/2 teaspoons freshly ground black pepper

  • 1 2.0kg boneless leg of lamb, opened flat like a book, trimmed of all fat and sinew (1.6kg after trimming)

How to make Grilled Leg of Lamb with Ancho Chilli Marinade

Combine wine, oil, garlic, 3 tablespoons oregano, ancho chilli powder, lemon juice, 1 spring onion, sugar, salt, and pepper in blender. Blend mixture until smooth. Transfer marinade to 13 x 9 x 2-inch glass baking dish. Add lamb and turn to coat evenly. Cover dish tightly with plastic wrap and refrigerate overnight.

Prepare barbecue (medium heat). Grill lamb with some of marinade still clinging to surface until lamb is cooked to desired doneness, 15 to 16 minutes per side for medium-rare (54°C). Transfer lamb to carving board. Let lamb rest 15 minutes.

Meanwhile, finely chop remaining spring onion and 1 tablespoon oregano leaves; combine in small bowl.

Thinly slice lamb across grain. Arrange lamb slices on platter. Pour over any accumulated juices. Sprinkle with onion-oregano mixture and serve.

  • Available in the spice section of many supermarkets and at Latin markets.

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.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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