Mix dry ingredients. In a large bowl, whisk together the flour, sugar, and salt until combined.
Add butter. Cut your cold butter into about 1/2-inch cubes. Immediately add your cold, cubed butter to the flour and toss to coat. Working quickly, squish each piece of butter between two fingers to create flat little “shingles” of butter. Work until you’re left with about pea-sized butter pieces.
Slowly add water and vodka. In a bowl mix together the ice water and cold vodka. Make a well in the center of your mixture and add about half of your water vodka mix. Using your hands, combine the water and flour until incorporated. Continue 1 tablespoon of water at a time to the dough until it comes together. You want to stay on the side of crumbly, yet hold together. If it is too wet and sticky add a tablespoon of flour to adjust.
Rest. Split the dough in two, form each half into discs, wrap both tightly in plastic wrap, and chill in the fridge for at least an hour.
For the flaky crust. on a lightly floured surface, roll out each disc into a large ~10-inch circle. Then, fold it in half from top to bottom and then from left to right. Repeat this entire process one more time for a total of 2 times. Then, form the dough back into a small disc, wrap it tightly in plastic, and chill in the fridge for 1 more hour before using. Repeat with the other disc of dough.
Roll out the dough. Lightly flour your work surface, coat your rolling pin, and sprinkle flour on top of the dough. Use gentle medium force to roll out the first disc of dough until about ⅛" thick, lifting and turning it to prevent it from sticking to the surface. If the dough gets sticky, sprinkle more flour on top of the dough and your rolling pin. If the dough cracks, use your hands to mold the dough back together.
Transfer to pie dish. Roll the dough onto the rolling pin and unroll it over a pie dish. Press the dough into the bottom edges of the pie dish. Trim any excess dough, leaving about a 1" overhang on the edge of the pie dish.