Ingredients
Method
- Preheat your oven to 325°F. Remove lamb from refrigerator 30 minutes before cooking to bring to room temperature.
- Pat the lamb shoulder completely dry with paper towels. Mix together salt, pepper, rosemary, thyme, and garlic powder in a small bowl.
- Rub the spice mixture all over the lamb shoulder, getting into all the crevices. Let it sit for 10 minutes while you prep the vegetables.
- Heat olive oil in a large Dutch oven or roasting pan over medium-high heat. Sear the lamb shoulder on all sides until deeply browned, about 3-4 minutes per side.
- Remove lamb from pot and set aside. Add onion slices, carrots, and smashed garlic to the same pot. Cook for 5 minutes, stirring occasionally.
- Stir in tomato paste and cook for another minute until fragrant. Pour in chicken stock and scrape up any browned bits from the bottom.
- Return lamb to the pot, nestling it among the vegetables. The liquid should come about 1/3 up the sides of the meat.
- Cover tightly with lid or heavy-duty foil. Roast for 3.5 to 4 hours, or until meat is fork-tender and pulls apart easily.
- Check every hour and add more stock if the pan looks dry. Internal temperature should reach 195°F for fork-tender results.
- Remove from oven and let rest for 15 minutes before carving. Strain the pan juices and serve alongside the sliced lamb.
Notes
The lamb will keep covered in the refrigerator for 3-4 days. Reheat gently in a 300°F oven until warmed through. If you can't find bone-in shoulder, boneless works too but reduce cooking time by about 30 minutes. For a deeper flavor, you can marinate the seasoned lamb overnight in the refrigerator.
