Place flour, salt and sugar in a mixing bowl and whisk through.
Add butter and either use a fork or pastry cutter to cut butter into flour. Alternatively use a food processor but do not overmix. The dough need to resemble a crumble texture.
Gradually add the ice water and stir into the flour-butter mixture using a spoon or spatula.
Transfer the dough to a floured surface and gently kneed.
Form a ball and cut it into half.
Clingwrap each half and refrigerate for 2 hours or freeze for later use.