BBC Food - Recipes - Cullen skink

Ingredients

• 75g/2½oz butter
• 1 tbsp vegetable oil
• 2 leeks , roughly chopped
• 2 onions , peeled, roughly chopped
• 2 fennel bulbs, roughly chopped
• 250ml/9fl oz white wine
• 500g/17½oz smoked haddock
• 750ml/1 pint 7fl oz water
• 2 leeks , finely chopped
• 2 shallots , peeled, finely chopped
• 2 garlic cloves, peeled, crushed
• 300g/10½oz potatoes, peeled, chopped
• 500ml/17½fl oz double cream
• 1 tbsp finely chopped fresh parsley
• pinch freshly grated nutmeg