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12-Hour Slow-Roasted Lamb Shoulder

Browning lamb shoulder served with jus, potatoes, lemon, and herbs.
Slow-roasted lamb shoulder with jus and potatoes.

Bone-in lamb shoulder is rubbed with rosemary, oregano, garlic, and olive oil, then roasted until tender and served with a rich jus made from the pan juices.

By Cookin' Kitchen

  • Total: 15 hours 10 minutes
  • Servings: 5 servings

Recipe

12-Hour Slow-Roasted Lamb Shoulder

Bone-in lamb shoulder is rubbed with rosemary, oregano, garlic, and olive oil, then roasted until tender and served with a rich jus made from the pan juices.

Cookin' · https://cookin.club/recipes/12-hour-slow-roasted-lamb-shoulder

Prep
10 minutes
Cook
13 hours
Rest
2 hours
Total
15 hours 10 minutes
Servings
5

Ingredients

5 servings

For 5 servings

Lamb

Marinade

Lamb jus

Equipment

  • Oven
  • Small bowl
  • Roasting pan
  • Baking paper
  • Aluminum foil
  • Two forks
  • Large dish
  • Strainer
  • Saucepan
  • Tongs

Instructions

Roast the lamb

  1. Step 1: Preheat the oven to 230°C / 450°F (210°C fan).

  2. Step 2: Mix the marinade ingredients in a small bowl. Rub the mixture all over the lamb, working it into the cracks and crevices.

  3. Step 3: If time permits, marinate the lamb for 2 hours on the counter in a roasting pan, or for up to 24 hours in the fridge. This step is optional.

  4. Step 4: Scatter the onion in the base of a roasting pan. Set the lamb on top and pour the water into the pan.

  5. Step 5: Roast uncovered for 45 minutes.

  6. Step 6: Turn the oven down to 100°C/210°F, for either a fan or standard oven. Cover the lamb with baking paper, then a double layer of foil, and seal very tightly to prevent water from evaporating. Roast for 12 hours.

    Seasoned lamb shoulders roasting in a pan with cooking liquid.
  7. Step 7: Test the side of the lamb with two forks. The meat should be fall-apart tender. If it is not, cover it and return it to the oven.

    Forks pulling apart tender, browned lamb shoulder.
  8. Step 8: Remove the lamb from the roasting pan and transfer it to a large dish. Cover it loosely with foil to keep it warm; it will stay warm for 2 to 3 hours.

Make the lamb jus

  1. Step 9: Strain all the liquid from the roasting pan into a saucepan. Bring it to a boil, then simmer rapidly over medium-high heat until it reduces to 1 cup (250 ml).

    Roasting pan juices being strained into a saucepan, followed by the liquid being stirred.
  2. Step 10: Mix the cornflour with the water. Pour the mixture into the jus in a thin stream while stirring continuously. Cook over medium heat for a minute or two, stirring occasionally, until the jus thickens to a syrup consistency. Add salt and pepper to taste.

    A ladle holding dark lamb jus above a saucepan.

Serve

  1. Step 11: Serve the lamb with the jus. Use tongs to pull off the tender meat; it does not need to be carved with a knife.

    Jus being poured over tender pulled lamb on a platter.

    Tip: Greek lemon roasted potatoes or roasted vegetables make suitable sides.

Notes

For make-ahead serving, cool the cooked lamb and jus to room temperature, cover, and refrigerate. Take the lamb out of the fridge 3 hours before serving, then reheat it covered in a 150°C/300°F oven for 1 hour for one shoulder. Reheat the jus in a microwave or saucepan.

Cooked lamb keeps in the fridge for 4 to 5 days or in the freezer for 3 months. The jus can be made days ahead and refrigerated.

Nutrition per serving

Calories
377 kcal
Fat
21 g
Saturated fat
5 g
Carbohydrates
4 g
Sugar
1 g
Fiber
1 g
Protein
41 g
Sodium
727 mg
Cholesterol
129 mg

Estimated values; they will vary with the exact ingredients and brands you use.

About this recipe

Rosemary, oregano, garlic, salt, pepper, and olive oil season this bone-in lamb shoulder. A brief uncovered roast gives it a browning head start before the long, covered cook.

Tender, browned lamb shoulder pulled apart on a platter with herbs and lemon.
The lamb shoulder pulls apart easily after roasting.

The lamb slow-roasts for 12 hours at a low temperature, then the pan juices are reduced and thickened into a jus. Marinating is optional: give it 2 hours at room temperature or up to 24 hours in the fridge if you have time.

Six-panel sequence showing the lamb rub being mixed and applied, the lamb placed in a pan, and stages of roasting.
A sequence of preparation and roasting stages.

Ingredients at a glance

Lamb shoulder, rosemary, garlic, onion, water, olive oil, salt, and pepper arranged as ingredients.
Ingredients for the lamb shoulder and its herb rub.

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