Ingredients: (Serves 4)

675g/1½ lb cod or haddock fillets

1 onion, finely chopped

Salt, pepper

Few drops of lemon juice

150ml/ ¼pt water

275ml/ ½pt milk

25g/1oz butter

1 tbsp flour

8 potatoes, cooked and mashed

Method:

1. Wash the fillets and place in a saucepan with onion, lemon juice, water, milk and seasoning.

2. Cover, bring to boil and cook gently for 10 mins.

3. Drain the fish, saving the stock.

4. Melt the butter in a saucepan, add flour and cook for 2 mins, stirring continuously.

5. Keep stirring and gradually add the fish stock.

6. Bring to the boil, reduce the heat and cook for another 5 mins.

7. Grease a pie dish and add a little sauce. Place the fillets in the dish and cover with remaining sauce.

8. Spoon the mashed potatoes on top and bake at 200°C/fan 180°C for 10-20 mins.