Slow Cooker Lamb Shoulder with Yogurt-Mint Marinade
Boneless lamb shoulder spends hours in a cumin, garlic and lemon yogurt marinade, then slow cooks over sweet onions until it shreds with a fork. A cool mint-yogurt sauce and a quick reduction of the cooking juices finish the dish.
- Prep
- 45 min
- Cook
- 8 hr 10 min
- Wait
- 4 hr 15 min
- Total
- 13 hr 10 min
- Makes
- About 6 servings (roughly 4 cups shredded lamb)
Steps
Before you start
- Plan ahead: the lamb needs at least 4 hours in the marinade (up to 18 hours in the fridge) and 8 hours on LOW in the slow cooker.
- Trim thick, hard external fat from the lamb but leave thin streaks of fat. They keep the meat moist.
- Use full-fat Greek yogurt. Low-fat yogurt can look grainy after long cooking.
- Use a 6-quart (5.5 L) slow cooker. Smaller ones will crowd the meat and cook it unevenly.
Mix the marinade
- In a large bowl, stir together the marinade yogurt, ½ cup chopped mint, grated garlic, 3 tbsp lemon juice, lemon zest, cumin, coriander, paprika, cinnamon, 2 tsp salt, black pepper and olive oil until it forms a thick, evenly speckled paste.
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Ready when: No streaks of dry spice remain and the marinade is uniformly pale green-orange.
Tip: Grate the garlic on a fine rasp so it disperses and doesn't leave raw bites.
Marinate the lamb
- Add the dry lamb chunks to the bowl and turn them with your hands until every surface and crevice is coated.
- Transfer to a zip-top bag or cover the bowl tightly and refrigerate for at least 4 hours, or up to 18 hours.
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Ready when: The lamb looks fully coated and slightly lighter in color.
Tip: Don't go past 18 hours. The lemon juice can make the surface of the meat mushy.
Set up the cooker
- Spread the sliced onions in an even layer across the bottom of the slow cooker and pour in the ¼ cup water.
- Lift the lamb from the bag, letting excess marinade cling to it, and nestle the chunks on top of the onions in a single snug layer.
- Scrape any remaining marinade over the meat.
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Ready when: Onions fully cover the base and the lamb sits on top, not submerged.
Tip: The onions act as a rack that keeps the lamb out of direct contact with the hot base so it doesn't scorch.
Slow cook until tenderOven 205°F / 95°C
- Cover and cook on LOW for 8 hours (or on HIGH for 4½ to 5 hours).
- Do not lift the lid during the first 6 hours.
- Check at the end: the lamb should be very soft and the internal temperature should read 195–205°F (90–96°C).
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Ready when: A fork twists into the meat with almost no resistance and the chunks begin to fall apart.
Tip: If it still feels springy or the temperature is below 195°F (90°C), cook another 30–60 minutes. Tough meat is just undercooked, not overcooked.
Rest and strain juices
- Using tongs and a slotted spoon, move the lamb to a rimmed tray or large dish and tent loosely with foil.
- Let it rest for 15 minutes.
- Meanwhile pour the contents of the cooker through a fine-mesh strainer into a medium saucepan, pressing the onions gently, then skim off the fat floating on the surface with a spoon.
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Ready when: You have about 1½ cups of juices and the lamb is cool enough to touch.
Tip: Keep the softened onions to serve alongside if you like. Chilling the juices for 10 minutes makes the fat easier to skim.
Reduce the juices
- Bring the strained juices to a boil over medium-high heat, then simmer, stirring occasionally, for 8–10 minutes until reduced by about half to roughly ¾ cup.
- Taste and add a pinch of salt only if needed.
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Ready when: The sauce is glossy and lightly coats the back of a spoon.
Tip: Don't let it boil hard on a low-volume pan or the yogurt solids can separate. Adjust to a steady simmer.
Make the mint yogurt sauce
- In a small bowl, stir together the cold yogurt, ¼ cup chopped mint, 1 tbsp lemon juice and ¼ tsp salt.
- Taste and adjust: it should be cool, tangy and fresh.
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Ready when: The sauce is smooth, spoonable and bright green-flecked.
Shred the lamb
- Discard any remaining gristle or large pieces of fat.
- Pull the lamb apart into bite-size shreds with two forks, then toss with 5–6 tablespoons of the reduced juices so the meat is moist and glossy.
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Ready when: Meat pulls apart in long, tender strands and looks juicy, not dry.
Tip: Shred while the lamb is still warm. Cold lamb fat firms up and makes shredding harder.
Serve
- Pile the lamb onto a platter with the reserved onions, spoon over the remaining reduced juices, and top with whole mint leaves and pomegranate seeds if using.
- Serve with the mint yogurt sauce on the side, with rice, warm flatbread or salad.
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Ready when: The lamb is steaming hot throughout.
Good to know
Tips
- Pat the lamb dry before marinating so the marinade clings instead of sliding off.
- Don't add extra liquid to the slow cooker. The lamb and onions release plenty, and too much liquid dilutes the flavor.
- Go by tenderness and temperature, not the clock. Slow cookers vary, so check at 7 hours on LOW.
- For a browned finish, spread the shredded lamb on a sheet pan and broil 3–4 minutes until the edges crisp.
Make ahead
Marinate the lamb up to 18 hours ahead. The cooked lamb and juices can be made 2 days ahead: store them together in the fridge, then reheat gently. The mint yogurt sauce keeps best made the day of serving.
Storage & reheating
Room temperature: no more than 2 hours. Fridge: store shredded lamb in its juices in an airtight container for up to 4 days; keep the yogurt sauce separate for up to 2 days. Freezer: freeze lamb with juices for up to 3 months and thaw overnight in the fridge. Reheat covered in a skillet over medium-low heat or in a 325°F (160°C) oven with a splash of water until steaming hot (165°F / 74°C). Don't freeze the yogurt sauce.
Substitutions
- boneless lamb shoulder → bone-in lamb shoulder, about 4 lb (1.8 kg). Cook the same time on LOW; remove the bone and fat before shredding. Expect slightly less meat yield.
- plain whole-milk Greek yogurt → full-fat plain (non-Greek) yogurt. Works, but the marinade is runnier, so cut the water to 2 tbsp.
- fresh mint leaves → fresh flat-leaf parsley plus 1 tsp dried mint. Gives a similar herbal flavor when fresh mint is unavailable.
- sweet paprika → smoked paprika. Adds a smoky note; use the same amount.
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- Meal
- Dinner
- Cuisine
- Middle Eastern
- Main ingredient
- Lamb Shoulder
- Method
- Slow Cooker
- Quick & Easy
- EasyMake Ahead


