These garlic rosemary lamb shanks simmer in a slow cooker with beef stock, red wine and onions until they are so meltingly tender that you won’t need a knife! Carrots and potatoes cooked with the shanks round out the meal. Years ago, I was watching a Nigella Lawson program where she was roasting a lamb shank for one. That’s a cut I had never bought but, like everything she does, Nigella made