Smoked fish and cider pie

Method

1. Melt the butter in a pan. Stir in the flour and cook for a few minutes over a medium heat until it forms a thick paste. Gradually stir in the cream, until you have a smooth thick sauce. Slowly add the cider, stirring constantly. Remove from the heat.
2. Stir in the prawns, both types of haddock, the peas, spring onions and parsley. Spoon the mix into a 1.5 litre pie dish. Cool.
3. Wet the edges of the dish with water to help the pastry stick, then unroll the pastry and lay on top. Press the edges down to seal. Trim the excess pastry from around the edges and use the trimmings to decorate the top, if you like, sticking them on with a little water. Wrap the cooled pie in cling film, then foil. Freeze until needed.
4. The day before you want to eat the pie, remove it from the freezer and defrost completely overnight in the fridge. Preheat the oven to 200°C/fan 180°C/gas 6. Brush the pastry with the beaten egg, then make a couple of slits in the top to allow the steam to escape. Cook for 30-35 minutes until golden and piping hot.