This is perfect to cook on Christmas Eve - serve it with mashed potato or macaroni and some crunchy veg alongside. You'll have plenty of leftovers to see you through the festive period!
When the ham is cool enough to touch, cut off the butcher's string and then use a sharp knife to carefully cut away the skin. Make sure you leave a generous layer of fat over the ham, and then score the fat into a diamond pattern.
Spoon the spiced cranberry syrup over the Christmas Ham and then put it in the oven for 15-20 minutes until the fat is coloured.