Rustic Fish & Egg Pie

Ingredients

• 900 g / 2 lb haddock, whiting or cod fillet - or a mixture of all
• 425 g / ¾ pint of milk
• ½ an onion, sliced
• 6 black peppercorns
• 1 bay leaf
• salt and freshly ground black pepper
• 5 hard boiled eggs
• 1 tbsp chopped fresh parsley
• 30 g / 1 oz butter
• 30 g / 1 oz plain flour
• 2 tbsp double cream
• 500 g / 1 lb mashed potato
• 1 packet of puff pastry