To defrost the Gammon Hock remove from the freezer and leave on your kitchen worktop for one day. Alternatively, place the Hock in the fridge and allow it to gently thaw for two days.
The hock is mostly made up of skin and bone and lots of connective tissue. They require a long slow cook in order to soften and render the meat and gelatine.
Place the hocks in a good sized casserole pan and cover with water. You can pop a lid on and cook in a low oven set to around 140C for 8 hours.
Alternatively place the hocks and water on the hob, bring to the boil, then turn the heat down so the pan is gently blipping. Cook for around 4 hours until the hocks are tender.