In a food processor combine flour, salt and butter. Pulse until the mixture is crumbly. Add water tablespoon by tablespoon and mix it in. You want the dough to stick together if you pinch it, so test it after each added tablespoon. Once the dough is clumpy, transfer it to a (very lightly floured) working surface. Form it in a ball and flatten into a disk. Wrap in plastic wrap and refrigerate for at least 30 minutes.
Roll out the dough on a slightly floured surface. Roll it out in all directions, from the center outwards, into a 11-inch (28-cm) round. Transfer to a greased pie plate and trim the edge.
Prick the bottom and sides of the pie shell and chill for 15-20 minutes in the freezer, at least 30 minutes (or even overnight) in the fridge. When you are ready to bake, heat the oven to 180°C (375°F) with a baking sheet in the middle of the oven.
Line the shell with foil and fill with (baking) beans. Blind bake until the edge is golden, about 10-15 minutes. Remove the foil and beans and bake for another 15 minutes (or more), until the shell is golden all over. Cool shell.