For the Crust. In the work bowl of a food processor, place flour, confectioners’ sugar, and salt; pulse until combined. Add cold butter, and pulse until mixture is crumbly. With processor running, add egg yolk and 2 tablespoons (30 grams) ice water, pulsing until dough comes together. Shape dough into a disk, and wrap in plastic wrap. Refrigerate for at least 30 minutes or up to 24 hours.
Preheat oven to 350°F (180°C).
On a lightly floured surface, roll Tart Dough into a 12-inch circle. Transfer to a 9-inch round tart pan, pressing into bottom and up sides. Trim excess dough. Using a fork, prick bottom of tart shell. Freeze for 15 minutes. Top dough with a piece of parchment paper, letting ends extend over edges of pan. Add pie weights (or uncooked rice or dried beans).
Bake until edges are set, about 20 minutes. Carefully remove paper and weights. Bake until crust is golden brown, about 10 minutes more. Let cool completely on a wire rack.