Either bone the leg of lamb or have your butcher do it. Cut off as much skin and fat as you can and then cut into about 3-4 cm/1½ inch cubes. Mix 20 or so tablespoonfuls of olive oil, three tablespoonfuls of fresh lemon juice, crush the garlic cloves and add, and season with salt to make a marinade. Add a handful of fresh rosemary and of oregano and stir in the lamb
Picture . Keep in the fridge over night or for at least four hours.