Lamb Osso Buco Slow-Cooked


There are two tricks to this lamb osso buco recipe: browning the lamb shanks before they go into the slow cooker and reducing the sauce before serving. The result is an osso buco you'd be hard-pressed to distinguish from the labor-intensive classic.

close up view of Lamb Osso Buco garnished with onions and celery in a pot
Prep Time:
15 mins
Cook Time:
6 hrs 20 mins
Total Time:
6 hrs 35 mins


  • ½ cup all-purpose flour

  • 2 ½ pounds lamb shanks

  • salt and freshly ground black pepper to taste

  • 2 tablespoons unsalted butter

  • 1 cup dry white wine

  • 1 (14.5 ounce) can diced tomatoes

  • 1 ½ cups chopped onion

  • ¾ cup chicken broth

  • ½ cup chopped celery

  • 5 sprigs fresh thyme, leaves removed


  1. Put flour into a shallow wide bowl. Season lamb shanks with salt and pepper; dredge through flour until coated, shaking off any excess flour.

  2. Heat a large skillet over medium heat; add butter and heat until foaming. Cook lamb shanks in hot butter until golden, about 5 minutes per side. Transfer lamb shanks to a slow cooker.

  3. Pour wine into the skillet and bring to a boil while scraping the browned bits of food off of the bottom of the pan with a wooden spoon; transfer to the slow cooker. Add tomatoes with their juice, onion, chicken broth, celery, and thyme leaves to the slow cooker.

  4. Cook on Low until lamb is very tender and almost falling off the bone, 6 to 8 hours. Transfer lamb shanks to a platter and cover with aluminum foil.

  5. Transfer sauce in the slow cooker to a large skillet; simmer over high heat until sauce is reduced to about 2 cups, 10 to 15 minutes. Season sauce with salt and pepper.

Cook's Note:

This may also be made with veal.

Canned tomato bisque soup can be substituted for diced tomatoes.

Nutrition Facts (per serving)

479 Calories
20g Fat
23g Carbs
37g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 479
% Daily Value *
Total Fat 20g 26%
Saturated Fat 9g 47%
Cholesterol 128mg 43%
Sodium 439mg 19%
Total Carbohydrate 23g 8%
Dietary Fiber 3g 9%
Total Sugars 6g
Protein 37g
Vitamin C 13mg 67%
Calcium 76mg 6%
Iron 6mg 33%
Potassium 726mg 15%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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