Gammon is one of my favourite roasts. Yes, even above Roast Beef and Roast Chicken. I know, I know. It’s controversial but there’s something about a beautifully roasted gammon joint that is so immensely satisfying. Plus you can do so much with the leftovers that you’ll undoubtedly have. This recipe will tell you how to make a perfectly cooked gammon joint, which is cooked twice by boiling it first, and…