In a large saucepan, heat the olive oil over a medium heat. Add the leeks and cook for 1 minute
100g of leek, washed, trimmed and sliced
1 tbsp of olive oil
3
Add the mushrooms and cook for another minute
115g of chestnut mushrooms
4
Add the chicken stock and double cream to the pan. Bring to the boil and reduce the liquid until it starts to thicken slightly
300ml of double cream
400ml of chicken stock
5
Then, add the cooked chicken pieces and tarragon. Season with salt and pepper and stir thoroughly
400g of roast chicken, diced or in pieces
1 tbsp of tarragon, roughly chopped
1 pinch of black pepper
1 pinch of salt
6
Once the chicken has heated through, remove from the heat and spoon the pie mixture into the pie plate, filling it right up
7
Cut out the pastry to size - so that covers your dish, and then lay it on top. Cut around the side of the plate to remove excess and then crimp the pastry at the edges to seal the dish
350g of sheet of puff pastry
8
Brush the beaten egg over the pastry to glaze
1 egg, beaten
9
Place the dish in the oven and bake for 30 minutes, or until the pastry is golden brown and cooked