Fish pie - in four steps

INGREDIENTS

• 400g skinless white fish fillet
• 400g skinless smoked haddock fillet
• 600ml full-fat milk
• 1 small onion , quartered
• 4 cloves
• 2 bay leaves
• 4 eggs
• small bunch parsley , leaves only, chopped
• 100g butter
• 50g plain flour
• pinch freshly grated nutmeg
• 1kg floury potato , peeled and cut into even-sized chunks
• 50g cheddar , grated