For the quick rough puff pastry
400g plain flour, plus extra for dusting
pinch of salt
65g chilled butter
160g frozen butter
150 – 180ml cold water
For the filling
2 large leeks, washed & roughly sliced
finely grated zest and juice of 1 orange
50ml medium sherry
3 tbsp plain flour
500ml chicken stock (or 250ml left over gravy & 250ml stock)
1 heaped tsp wholegrain mustard
200ml single cream
650g left over turkey meat, cut into bite size pieces
250g left over ham, cut into bite size pieces
2 tbsp tarragon, roughly chopped
salt and white pepper
1 beaten egg to glaze
1. For the pastry, mix the flour and salt together. Rub in the 65g chilled butter. Gradually add enough water to form a dough.
2. Lightly dust the work surface with flour and roll the dough into a rectangle. Grate 60g of frozen butter over the bottom two thirds of the dough. Fold down the top third and fold up the top third as if folding a letter.
3. Turn 90 degrees and roll out again. Repeat adding the remaining frozen butter and fold as before. Rest in the fridge for 30minutes before using.
4. For the filling, melt the butter in a large frying pan over a medium heat and add the leeks to the pan with the orange juice, zest and sherry. Cover and cook gently for 6 minutes, stirring occasionally until the leeks are just tender. Remove the lid and increase the heat, reduce the liquid until you are left with a few spoons of the buttery liquid. Sprinkle the flour over the leeks and stir to mix evenly. Gradually add the stock, simmer for 5 minutes until the sauce has thickened slightly . Add the mustard, turkey and ham and stir. Finally add the tarragon and cream. Season to taste with a little white pepper and salt.
5. Place a pie funnel in the centre of a 1.2 /1.5 litre pie dish. Pour the pie filling and sauce into the dish and allow to cool.
6. Preheat the oven to 200C/fan 180C/gas 6. Roll out the pastry on a lightly floured surface to about 5mm thick. Cut a 2cm strip of pastry. Brush the rim of the pie dish with egg wash, then place the pastry strip onto the rim, brush this with egg wash. Cut the remaining pastry a little larger than the dish. Position the lid over the filling; make a steam hole to expose the funnel. Press the edges to seal then trim away any excess. Re roll any trimmings and make decorations. Brush the pastry with egg wash, arrange any decorations on top of the pie and brush these with egg too.
7. Bake for 35-40 minutes until the pastry is risen and golden, allow to cool slightly before serving.