Try to get a peice of lamb shoulder that has a bone in it as it'll add to the flavour of the meat while cooking. Slit the lamb a few times on each side. You can use a leg of lamb

Place the lamb in an oven proof dish. Use one that has a lid on it.

Mix the rest of the ingredients in a small bowl, and then add it to the lamb, ensure the meat is well coated throughout.

Place the lamb in the fridge overnight to marinade.

Peel and cut the potatoes and onions in quarters and add them to the oven proof dish. While cooking the potatoes will absorb the marinade and flavour of the meat.

When your ready to cook. Turn the oven to 180 c.

Slow cook in the oven for about 160-180c for 1.30 hours to 2hrs