2 carrots, peeled and roughly chopped
2 celery sticks, roughly chopped
150²µ/5½´Ç³ú cherry conserve
3cm/1¼in piece root ginger, finely grated
1 large onion
1 sprig thyme
few allspice berries
4 bay leaves
1 tbsp light soft brown sugar
½ tsp ground cinnamon
6 cloves
cloves, for studding
few peppercorns
2.5–3kg/5–6lb 8oz gammon joint, smoked or unsmoked, rolled and tied
100ml/3½fl oz bourbon whiskey