Best roast leg of lamb recipe | Jamie Oliver lamb recipes (2024)

FAQs

Should lamb be cooked slow or fast? ›

Lower temp = more succulent meat – Tough cuts like lamb shoulder need slow-cooking to tenderise them. The lower the roasting temperature, the less total moisture evaporation and thus juicier meat.

Place in an oven preheated to 180 degrees Celsius. Roast for 25 to 30 minutes per 500 grams for medium or until the lamb is cooked to your liking. To test, press the meat with tongs. The lamb will feel soft when it's cooked to medium-rare and you'll feel a slight resistance when it's cooked to medium.

For a medium cooked lamb, which is perfectly pink on the inside, budget about 25 minutes per pound or until the internal temp registers somewhere around 130°F (about 1 ½ to 2 hours in a 325 degrees F-heated oven).

The leg and rack of lamb are perfect for herb-crusting and oven-roasting; since the shank and shoulder are a bit tougher, they fare well in stews or braises—the long cook time allows them to significantly break down and become fork-tender.

For the perfect roast lamb, we recommend seasoning the surface of the meat, and then searing it, especially fat side down in a pan before roasting. Why bother with searing? Contrary to some stories, searing is less about locking in moisture, and all about improving the flavour!

Cook all raw lamb steaks, chops, and roasts to a minimum internal temperature of 145° F (62.8° C) as measured with a food thermometer before removing meat from the heat source. For safety and quality, allow meat to rest for at least three minutes before carving or consuming.

The dry heat of roasting is best for tender cuts of lamb, like the leg, rack, and loin. If you'd like to roast a cut like a lamb shoulder, go for a long, slow roast. If you're cooking a bone-in leg, keep in mind that because of the thicker and thinner portions of the cut you'll get a range of doneness.

For a lean piece of meat, cook at 450 degrees F (230 degrees C) for the first 15 minutes, then turn the temperature down to 350 degrees F (175 degrees C) to continue roasting — the meat will take about 25 minutes per pound to reach medium rare.

Cuts like the shoulder, shanks and forequarter are much more forgiving than a leg of lamb, and they can stay in the slow cooker for a couple more hours than the recommended cooking time. However, if you leave lamb in the slow cooker for too long it will become stringy and dry.

How long should lamb be cooked for? ›

Lamb should be roasted 20 mins per 450g/lb, plus an extra 20 mins. Weigh meat prior to roasting to determine cooking times. Cook at 220C/200C fan for the first 20 mins and then 190C/170C fan for the remaining time.