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Slow cooker lamb shanks with polenta is a hearty and flavorful dish made with tender, fall-off-the-bone lamb shanks braised in a spiced tomato-based sauce and served over creamy polenta. Using a slow cooker ensures the lamb is perfectly cooked over 6-8 hours, making it a low-effort meal that delivers rich, deep flavors. This recipe yields four servings and is a wonderful way to bring comfort and warmth to your dinner table.

There’s something grounding about slow cooking on rainy Portland weekends, where the aroma of cumin and paprika fills the kitchen and reminds me why I fell in love with cooking in the first place. This dish is a perfect example of that cozy magic.

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Why is this dish so special?

Slow Cooker Lamb Shanks with Polenta stands out for its ability to transform simple ingredients into a dish bursting with tender textures and earthy, spiced flavors. It’s a satisfying meal that’s perfect for feeding both the body and the soul.

  • The slow cooker does the hard work, allowing you to focus on other tasks or simply relax.
  • The combination of lamb and spices creates a rich, aromatic sauce that’s deeply satisfying.
  • Paired with creamy Parmesan polenta, it delivers a balance of textures—silky, hearty, and comforting.
  • It’s a great make-ahead option for meals, as the flavors deepen even more overnight.

What ingredients do you need for Slow Cooker Lamb Shanks with Polenta?

This recipe uses fresh vegetables, warm spices, and pantry staples to create bold flavors balanced with a creamy base. Here’s everything you’ll need:

The spices, like cumin and smoked paprika, provide earthy depth, while Parmesan and butter elevate the creamy polenta to a luxurious base for the lamb.

How do you make Slow Cooker Lamb Shanks with Polenta step by step?

The process involves searing the lamb, preparing a flavorful vegetable base, and letting the slow cooker work its magic before making the polenta. Here’s how:

Step 1 — Sear the lamb shanks

Heat olive oil in a large skillet over medium-high heat. Season the lamb shanks liberally with salt and pepper, then sear them until browned on all sides. Remove the shanks from the skillet and set aside.

You might also enjoy our sweet and savory: the slow.

Step 2 — Sauté the vegetables

In the same skillet, add the chopped onion, garlic, carrots, and celery. Sauté for about 5 minutes until the vegetables are softened.

Step 3 — Add the spices

Stir in the cumin, coriander, and smoked paprika, cooking for an additional minute until the spices become aromatic.

Step 4 — Assemble in the slow cooker

Transfer the sautéed vegetables to the slow cooker. Add the seared lamb shanks, diced tomatoes, beef broth, tomato paste, and bay leaf. Stir to combine and cover.

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Step 5 — Slow cook the lamb

Cook on low for 6-8 hours until the lamb is tender and easily pulls away from the bone.

For more ideas, check out our unleashing flavor: the keto slow.

Step 6 — Prepare the polenta

About 30 minutes before serving, bring 4 cups of water to a boil in a saucepan. Gradually whisk in the polenta, reduce the heat to low, and stir constantly until thickened, about 5-7 minutes.

Step 7 — Finish and serve

Remove the polenta from heat, stir in Parmesan cheese and butter, and season with salt and pepper. Plate the polenta, top with lamb shanks and sauce, and garnish with fresh parsley.

Frequently Asked Questions About Slow Cooker Lamb Shanks with Polenta

Can I use a different cut of lamb?

Lamb shanks work best for this recipe because they become tender with slow cooking. However, you could use bone-in lamb shoulder as a substitute.

What can I replace polenta with?

If you’re out of polenta, creamy mashed potatoes or a hearty grain like farro could work as a substitute.

Looking for something similar? Try our why this slow cooker cashew.

How do I know the lamb shanks are ready?

The lamb is done when it is fork-tender and easily pulls away from the bone, typically after 6-8 hours on low in the slow cooker.

Can I make this dish ahead of time?

Yes, the flavors of this dish improve overnight. Store it in an airtight container in the fridge for up to 3 days.

What’s the best way to reheat leftovers?

Reheat the lamb and sauce on the stovetop over low heat until warmed through. The polenta can be reheated with a splash of water or broth for creaminess.

How should you store and reheat leftovers?

Store leftovers in separate airtight containers. Lamb and sauce can be refrigerated for 3 days or frozen for up to 2 months. Polenta is best refrigerated and reheated on the stovetop with added liquid to restore its creamy texture.

What are common mistakes to avoid?

Don’t skip browning the lamb shanks, as it develops essential depth of flavor. Avoid overcooking the polenta, as it can turn too stiff—stir it constantly and remove it from heat once thickened.

What pairs well with this dish?

This dish pairs beautifully with sautéed greens like Swiss chard or spinach. A crusty artisan bread can also be served to soak up the rich sauce. For beverages, a medium-bodied red wine like Syrah complements the dish’s bold flavors.

Slow Cooker Lamb Shanks with Polenta

Prep Time 20 minutes
Cook Time 8 hours
Total Time 8 hours 20 minutes
Servings 4 servings
Calories 600
This hearty dish features tender lamb shanks slow-cooked in a flavorful broth, served over creamy polenta.

Equipment

  • slow cooker
  • skillet
  • saucepan
  • whisk
  • cutting board

Instructions 

  • Heat olive oil in a large skillet over medium-high heat. Season the lamb shanks with salt and pepper, then sear them in the skillet until browned on all sides. Remove from skillet and set aside.
  • In the same skillet, add the chopped onion, garlic, carrots, and celery. Sauté until the vegetables are softened, about 5 minutes.
  • Stir in the ground cumin, coriander, and smoked paprika, cooking for another minute until fragrant.
  • Transfer the sautéed vegetables to the slow cooker. Add the seared lamb shanks, diced tomatoes, beef broth, tomato paste, and bay leaf. Stir to combine.
  • Cover and cook on low for 6-8 hours or until the lamb is tender and falling off the bone.
  • About 30 minutes before serving, bring 4 cups of water to a boil in a saucepan. Gradually whisk in the polenta, reducing heat to low. Stir constantly until the polenta thickens, about 5-7 minutes.
  • Remove from heat and stir in the grated Parmesan cheese and butter. Season with salt and pepper to taste.
  • To serve, spoon the creamy polenta onto plates and top with the slow-cooked lamb shanks and sauce. Garnish with fresh parsley.

Notes

For a richer flavor, consider adding red wine to the broth.
Calories: 600kcal
Cost: $20
Course: Main Course
Cuisine: Mediterranean
Keyword: lamb shanks, polenta, Slow Cooker

Nutrition

Calories: 600kcal | Carbohydrates: 50g | Protein: 45g | Fat: 30g | Sodium: 800mg
A delicious plate of slow cooker lamb shanks served over creamy polenta, garnished with fresh herbs.

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