Description

This Slow-Roasted Rosemary Lamb Shoulder recipe delivers tender, flavorful meat infused with fresh rosemary and garlic. Slow roasting at a low temperature ensures the lamb becomes incredibly juicy and easy to shred, while a final blast of heat crisps the exterior to perfection. Served with caramelized onions and pan juices, it’s an ideal dish for a comforting family meal or special occasion dinner.

Ingredients

Scale

Meat

4–5 lb lamb shoulder, bone-in

Herbs & Aromatics

4–5 sprigs fresh rosemary
6–8 cloves garlic, sliced
2 large onions, thickly sliced
1 tsp lemon zest (optional)

Seasonings & Liquids

2 tbsp olive oil
1 ½ tsp salt
1 tsp black pepper
1 cup white wine or broth

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Instructions

Prepare the lamb: Pat the lamb shoulder dry with paper towels to remove any excess moisture. Make small slits all over the meat using a sharp knife and carefully tuck sliced garlic and rosemary sprigs into these slits to infuse flavor deep into the meat.
Season the lamb: Rub the entire lamb shoulder generously with olive oil to help seasonings adhere and promote browning. Then, season it all over with salt, black pepper, and if desired, sprinkle with lemon zest for a hint of brightness.
Arrange aromatics and add liquid: Spread the thickly sliced onions evenly in the bottom of a roasting pan or Dutch oven. Pour in white wine or broth to keep the meat moist and create flavorful pan juices during roasting.
Slow roast the lamb: Place the prepared lamb shoulder on top of the onions. Cover tightly with aluminum foil or the lid of the Dutch oven to trap steam and roast in a preheated oven at 300°F (150°C) for 3.5 to 4 hours. Occasionally baste the meat with the pan juices to maintain moisture and enhance flavor.
Crisp the exterior: Remove the foil or lid and increase the oven temperature to 375°F (190°C). Roast uncovered for an additional 30 minutes to develop a crispy, caramelized crust on the top of the lamb.
Rest and serve: Let the lamb rest uncovered for 15–20 minutes after roasting to allow the juices to redistribute. Then shred or carve the meat and serve it alongside the softened onions and the flavorful pan juices.

Notes

Using bone-in lamb shoulder helps retain moisture and adds flavor during the slow roasting process.
Tucking garlic and rosemary inside the meat slits infuses the lamb from within, enhancing the overall taste.
Choose white wine for a subtle acidity or broth for a milder flavor in the roasting liquid.
Resting the meat before carving is essential to keep it juicy and tender.
This recipe can be adapted to cook in a slow cooker at low for 6-8 hours if preferred, though the final crisping step would need adjustment.