750g/1lb 11oz celeriac, peeled and chopped
300g/11oz fresh cranberries
75g/3oz dried cranberries
1 orange, zest and juice
450g/1lb potatoes, peeled and chopped
150g/5oz caster sugar
陆 tsp ground cinnamon
陆 tsp ground ginger
2 tbsp olive oil
2 star anise
110ml/4fl oz port
75ml/3fl oz port
75g/3oz butter
50g/2oz butter
4 duck breasts, skin scored into a diamond pattern with a sharp knife