In a large bowl, whisk together flour, salt, and sugar. This helps evenly distribute the ingredients for a consistent crust.
Add cold, cubed butter to the flour mixture. Use a pastry cutter or your hands to blend until the mixture resembles coarse crumbs with pea-sized butter bits.
Gradually add ice water, one tablespoon at a time, mixing with a fork until the dough holds together. Avoid overmixing to keep the crust tender.
Form the dough into a disc, wrap it in plastic wrap, and refrigerate for at least 1 hour. This helps relax the gluten and keeps the butter cold for a flaky texture.
On a floured surface, roll out the dough to fit a 9-inch pie pan. Fill with your favorite pie filling, like Homemade Lemon Meringue Pie, and bake as directed.