1 carrot, cut into big chunks
2 leeks, halved
1 onion, halved
1 tsp grated orange zest
2-3 tbsp English mustard powder
2 bay leaves
10 black peppercorns
handful whole cloves, for decoration
1 tsp coriander seeds
3 tbsp demerara sugar
honey to drizzle
3 tbsp light muscovado sugar
1 raw smoked ham, about 5kg/11lb, bone in