If you don’t have a pot big enough for the whole ham then you can do this in the oven – just line a large roasting tin with foil and a wire rack and place the ham on top. Put the aromatics and cider under the ham and cover with a large tent of foil. Bring to the boil over a hob then transfer to a low oven (120˚C/100˚C fan/250˚F/Gas Mark ½) and roast overnight for about 12 hours. Keep the juices to make ham soup later in the Christmas period!
1 x 6-7 kg cured smoked ham, on the bone
1 large onion, halved
3 fresh bay leaves
5 star anise
1 tsp black peppercorns
1 tsp allspice berries
1l dry cider
Small handful of cloves, to stud
1 tsp mustard powder
1 tbsp demerara sugar
For the glaze:
150g plum jam
40g soft light brown sugar
75ml whisky
2 star anise