Prepare the Dry Ingredients: In a large mixing bowl, combine the flour and salt. Stir to evenly distribute the salt throughout the flour.
Incorporate the Butter: Cut the cold butter into small cubes and add them to the flour mixture. Use your fingers or a pastry cutter to work the butter into the flour until it forms coarse crumbs.
Add Water: Gradually pour the water into the mixture, stirring as you go. Add enough water to form a dough. Avoid making it too sticky—just enough to bind the ingredients together.
Knead the Dough: Turn the dough out onto a lightly floured surface. Gently knead it a few times to bring it together. Do not overwork the dough, as that could affect its flakiness.
Rest the Dough: Wrap the dough in plastic wrap and let it rest in the refrigerator for at least 30 minutes before using. This resting time allows the dough to firm up and become easier to roll out.