December 19, 2022

Slow Braised Leg of Lamb With Leek Confit & Sweet Potato


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Slow braised leg of lamb



  • Boneless leg of American lamb, (4-5 pounds)
  • 4 teaspoon kosher salt
  • Fresh ground black pepper
  • 2 tablespoon olive oil
  • 10 cloves of garlic, (quartered)
  • 2 cups white wine
  • 1 cup chicken or beef stock
  • 4 fresh rosemary sprigs

For the leek confit:

  • 3 large leeks
  • 1/4 cup olive oil
  • 8 cloves of garlic
  • 1/2 teaspoon kosher salt
  • 8 fresh thyme sprigs

For the sweet potato puree:

  • 2.5 pounds sweet potatoes
  • 3 tablespoons butter
  • 1/8 teaspoon fresh grated nutmeg
  • Salt to taste
  • Pinch ground white pepper



For the slow braised leg of lamb:

Preheat oven to 300 degrees F.  Make slits all around the leg of lamb using a paring knife, and insert a piece of the prepared garlic into each slit.  Generously season lamb with salt (1 teaspoon per pound) and pepper. Heat a large Dutch oven over medium-high heat, add olive oil and sear lamb on all sides until golden brown, about 3 minutes per side.  Add wine and simmer for 1 minute.  Add stock and the fresh rosemary sprigs; bring to a boil. Cover Dutch oven with lid, and braise the lamb in oven for 4 hours, rotating the leg of lamb every hour.

Transfer lamb to a platter. Skim fat from the top of the juices in the Dutch oven. Simmer remaining juices over medium heat until reduced by half, about 10. Spoon sauce over lamb when serving.  Notes: If you don't have a Dutch oven, you can braise the lamb in a roasting pan.  Heat the oil by setting the pan across 2 stovetop burners, then cover with parchment-lined foil before putting the lamb into the oven. 

Note: The USDA recommends lamb reach an internal temperature of 145F with a three-minute rest.

For the leek confit:

Remove the outer skin of each leek. Chop leeks into 1/2-inch-thick rings, discarding the root end and the dark green tops. Gently rinse any rings that look dirty.  Arrange sliced leeks in a shallow baking pan along with garlic cloves.  Drizzle olive oil over the top of the leeks and garlic. Season with salt and add in thyme sprigs.  Roast leeks in the same oven as the lamb.  After 30 minutes carefully flip each leek ring so that they cook evenly.  Slow roast for another 30 minutes until lightly golden and melted.  Add more oil if leeks begin to dry out and brown.

For the sweet potato puree:

Prepare the sweet potatoes by peeling and chopping into large chunks.  Prepare a steamer and steam the sweet potatoes until fork tender, about 15-20 minutes.  Add the steamed sweet potatoes to the bowl of a food processor along with butter, freshly grated nutmeg, salt and white pepper. Puree for about 1 minute until the puree is light and creamy. Serve immediately.

Slow braised leg of lamb
Slow braised leg of lamb
thermometer timer illustration
Visit our Lamb Cooking Time & Temperature page for recipe inspiration and tips on preparing the perfect lamb.
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