Fish Pie

Ingredients

• 1 lb 10 oz (750 g) cod, halibut, or other white fish, filleted
• 2 tbsp single cream or milk
• 8 1/2 oz (250 g) smoked haddock or other smoked fish
• salt and freshly ground black pepper to season
• 16 fl oz (500 ml) milk
• 8 oz (225 g) cooked peeled prawns
• 1 small onion, roughly chopped
• 1 tbsp capers in brine, drained, rinsed, and chopped (optional)
• 3 1/2 oz (100 g) butter
• 2 tbsp chopped fresh parsley leaves
• 1 oz (30 g) plain flour
• 1/2 oz (15 g) parmesan, grated (optional)
• 3 lb 3 oz (1.5 kg) potatoes, peeled and quartered