Lightly butter a 9 inch tart pan or pie dish.
Mix together flour, sugar and salt using a wooden spoon to combine.
Add the butter and using your fingertips, gently mix in so that the dough starts coming together as clumps. Use minimum handling of dough.
Transfer the dough to the prepared tart pan/ pie dish.
Using your fingertips or back of a spoon, evenly press the pastry onto the bottom and up the sides of the pan.
Gently pierce the bottom of the crust with the tines of the fork to prevent puffing up of pastry while baking.
Cover the prepared crust in a cling film and place in the freezer for 15 minutes. This will help prevent the crust from shrinking while baking.
Pre-heat the oven to 220 °C and place rack in the center of the oven.
Place the tart pan onto a larger baking sheet and bake until golden brown, about 15 minutes.
Remove from oven and place on a wire rack to cool.
Once the pastry crust cools down, pour the prepared filling or store bought filling.
Wrap the pie in cling film and refrigerate for 3 hours or over night.
Serve chilled with a scoop of ice-cream or dollop of whipped cream.