Sift flour into a bowl along with the icing sugar. Add butter and using your finger tips rub the flour and butter together until it begins to resemble bread crumb. Add milk and continue to rub together until it forms a smooth dough.
If the dough is too wet add a little flour.
Leave the dough in a cool place to rest for 15 minutes.
Spray a muffin pan with a non stick spray ready for the pastry.
Lay a large sheet of baking paper down on a bench and place half the dough on top and flatten with hand. Lay another sheet of paper on top and use a rolling pin to roll out the dough until about 4mm ( about 1/5 of an inch) thick.
Cut the pastry with a pastry cutter or scone cutter and fill muffin tray, press down the pastry and ensure it comes to the top of each hole. Use excess pastry to patch up any parts with holes.
Repeat process until pastry is used up to make 8 pie cases.
Preheat oven to 170 ℃ / 310 ℉.
Fill each pastry cup with baking paper and fill with rice. This is called blind baking and stops the pastry from collapsing and rising
Cook for 12 minutes and remove from oven. Let it stand for 10 minutes before removing rice and paper. Keep the rice for the next time you need to blind bake.