In a large bowl, combine the all-purpose flour, granulated sugar, and kosher salt. Stir gently until well combined.

Add the cold unsalted butter cubes into the flour mixture. Use your fingers to work the butter in until the mixture resembles a shaggy texture.

Gradually pour in the ice cold water, stirring gently until the dough begins to come together.

Turn the dough out onto a lightly floured surface. Form it into a disc shape and wrap it tightly in plastic wrap.

Refrigerate for at least 2 hours to chill and firm up.

Once chilled, remove the dough from the fridge and roll it out on a floured surface.