In a large bowl, mix the flour and salt until combined.
Add the cold, cubed butter and use your fingers or a pastry cutter to rub it into the flour until the mixture resembles coarse crumbs.
Slowly pour in the water while mixing with a spoon or your hands until a rough dough forms. It should be soft but not overly sticky.
Transfer the dough to a lightly floured surface and knead gently for 2–3 minutes until smooth.
Cover and let the dough rest at room temperature for 15–30 minutes before using.
Roll out and shape as desired for flatbreads, pastries, galettes, or hand pies.
Bake or cook according to your specific recipe needs.