A favourite way of cooking ham from the deep South in the States- it tastes much better than it sounds. Its from ” Nigella Bites ” by Nigella Lawson though she has an earlier version in ” How to Eat”. The stock left over from cooking the ham makes a good base for a black bean soup . Mild -cure gammon should not need soaking, but if you have a salty piece put it into a pan covered with cold water, bring to a boil then drain in a colander.