500g/1lb 2oz floury potatoes, such as Maris Piper or King Edward, peeled, chopped
1 tbsp chopped fresh chives
陆 lemon, juice only
500g/1lb 2oz swede (yellow turnip), peeled, chopped
1 tbsp Dijon mustard
2 tsp wholegrain mustard
sea salt and freshly ground white pepper
50g/2oz butter
75ml/2戮fl oz double cream
500ml/17fl oz double cream
500g/1lb 2oz haggis
2 tsp whisky