Method

1. Place the Mix in a bowl, cut the fats into small pieces using a knife and add them to the Mix.
2. Using your fingertips, rub the fats into the Mix until the mixture resembles coarse breadcrumbs. Lightly stir in the egg and then gradually add sufficient cold water to produce a soft but not sticky dough (you will probably need 2-3tbsp in total). Using your hands, move the mixture around the bowl allowing it to form a dough without actually forcing it together. When the dough starts to clean the bottom of the bowl, sufficient water has been added.
3. The dough will still be quite crumbly, so this kneading stage is crucial. Lightly dust a surface with Mix and knead the dough 1-2 minutes. The pastry will change in texture, becoming much smoother and more pliable.
4. The pastry is now ready to use. To roll out, lightly dust the surface and the rolling pin with Mix and roll out using smooth short strokes. Keep the pastry moving around the surface but do not turn it over. As the piece gets bigger, use your rolling pin, rather than your hands, to pick it up. Use a star shaped cutter if you want to make the pies look more festive or a round cutter to cut circles roughly the same shape as your pie dishes.
5. Brush with a little egg and blind bake in a preheated oven for 10minutes (200°C/180°C Fan/400°F/Gas Mark 6) until lightly golden.
6. For the filling, pop the butter in a heavy based frying pan and melt over a low heat, then add leeks and fry gently for 10minutes until softened.
7. Add the garlic and cook for another minute; add the GF Mix and stir to coat the leeks, then gradually add the stock, stirring constantly until you have a smooth thick sauce.
8. Remove from the heat and stir in the turkey, ham, mustard and crème fraiche. Season well and transfer into 4 individual pie dishes.
9. Pop pie dishes onto a baking tray, top with pastry lid (circle or star!) and bake in a preheated oven (200°C/180°C Fan/Gas Mark 6) for 15minutes until pastry is golden (if you’ve made the pies and don’t want to bake immediately, pop the unbaked pies in the fridge until needed. You can also freeze them unbaked).