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Keto Dinner

Nana's Leg of Lamb

Nana's leg of lamb always brings back fond memories of Sunday dinners, the kitchen filled with rich, savory aromas. This keto-friendly version stays true to her simple, rustic approach—just garlic, lemon, and a buttery Worcestershire baste. I’ve found it’s the perfect centerpiece for gathering family around the table, and the leftovers are a gift that keeps on giving.

15 min Prep time 180 min Cook time 195 min Total time 4 Servings 480 Calories
Nana's Leg of Lamb

Ingredients

  • (4 pound) leg of lamb
  • salt to taste
  • clove garlic, cut into slivers
  • teaspoons vegetable oil
  • lemons, sliced and seeded
  • cups hot water
  • tablespoons butter
  • tablespoons Worcestershire sauce

Instructions

  1. Step 1

    Preheat your oven to 300°F. I begin by trimming away the skin and any thick fat from the leg of lamb, then season generously with salt. Using a sharp knife, poke small holes all over the meat and tuck slivers of garlic into each one. Heat the oil in a large skillet over medium-high heat and sear the lamb on all sides until beautifully browned—this locks in the juices. Transfer the lamb to a roasting pan, arrange lemon slices on top, and secure them with toothpicks. In a small saucepan, bring the hot water, butter, and Worcestershire sauce to a boil, then pour this savory liquid over the meat. Cover the pan tightly with aluminum foil and roast for 2½ hours, basting every 30 minutes. Then, remove the foil and lemon slices, and continue roasting for another 30 minutes, or until the internal temperature reads 145°F. Once out of the oven, tent the lamb loosely with foil and let it rest for 15 to 20 minutes before carving—this step makes all the difference for tenderness.

Chef's Tip

I always save the pan drippings to whisk into a quick keto gravy—just simmer with a splash of broth and a pinch of xanthan gum until thickened. It’s the secret that turns a simple roast into something truly memorable.

Storage Tips

Store any leftover lamb in an airtight container in the fridge for up to 4 days. Reheat gently in a covered skillet with a little broth to keep it moist.

Variation Tips

For a fresh twist, serve the lamb with a side of roasted cauliflower tossed in olive oil and cumin. Alternatively, swap the Worcestershire for coconut aminos and add a sprig of rosemary to the roasting pan for a herbaceous note.

Frequently Asked Questions