What’s in a name? Ham refers to the finished, cooked article, whereas a gammon is a raw joint for you to roast, steam or boil, and glaze at home. Leg of pork, taken from the hindquarter of the animal, is a plentiful cut and quite economical to buy. Although it makes a decent roast, it pales in comparison to shoulder, belly and loin, but in its cured form it really shines.