In a mixing bowl, combine the flour, sugar, and salt.

Add the cold, cubed butter to the flour mixture. Use a fork or pastry cutter to blend until the mixture resembles coarse crumbs.

Gradually add the ice water, mixing until the dough comes together.

Turn the dough out onto a floured surface and knead it gently just until combined.

Wrap the dough in plastic wrap and refrigerate for at least 30 minutes.

Preheat your oven to 375°F (190°C).

Roll out the dough on a floured surface to fit your baking dish, aiming for about 1/4 inch thickness.

Transfer the rolled-out dough to your baking dish and gently press it into the corners, trimming excess as needed.