Cube the 1 cup unsalted butter and chill it while you prepare the dry ingredients (Note 1).
Whisk the 3 cups all-purpose flour, 1 tablespoon granulated sugar, and ½ teaspoon salt together in a large bowl.
Add the chilled butter to the flour mixture. Use your fingertips to press and flatten each cube, mixing until you see pea-sized flakes throughout (Note 1).
Sprinkle the ¼ cup bourbon evenly over the flour-butter mixture and gently toss to moisten (Note 2).Drizzle in the ½ cup ice-cold water and stir gently with a fork until the dough starts to clump. It should look shaggy and a bit crumbly. (Note 3)Dough Check: Grab a handful and gently squeeze. If it holds together without falling apart, it’s ready. If it crumbles, add ice water 1 tablespoon at a time. If it feels sticky, dust with flour. Gently press the dough into a loose ball. Do not knead or overwork it (Note 1). Overmixing activates gluten and makes the crust tough. If the dough is still dry, add just a bit more ice water (Note 3).
Divide the dough into two portions. Flatten each into a disk, wrap in plastic wrap, and refrigerate for 30 minutes or until firm.
On a lightly floured surface, roll one disk into a 12-inch circle, about ¼-inch thick. Lightly flour the dough and rolling pin as needed to prevent sticking.
Carefully roll the dough over your rolling pin or lift with a bench scraper. Drape it over your 9-inch pie pan and gently press it into the base and sides. Trim the edges, leaving a slight overhang to allow for shrinkage (Note 5).
Line the crust with parchment paper and fill with pie weights, beans, or rice. Chill in the fridge for 30 minutes. Preheat oven to 400 F while it chills (Note 6). Place the pan on a baking sheet and bake for 15 minutes.
Remove the parchment and weights. Prick the bottom of the crust with a fork to prevent bubbling (Note 7). Return to the oven and bake for another 15 minutes, or until the bottom looks dry and lightly golden.
For a golden, glossy finish, brush the edges with a beaten egg during the last 10 minutes of baking (Note 4).
Let the crust cool completely before adding your desired filling. Bake according to your pie recipe’s instructions.