In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, and kosher salt.
Add the chilled, cubed butter to the flour mixture. Using a pastry cutter or your fingertips, work the butter into the flour until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
Drizzle the ice water into the bowl, one tablespoon at a time, gently mixing with a fork just until the dough begins to clump together and no dry flour remains.
Turn the shaggy dough out onto a clean work surface and gently press and knead it 3-4 times just to bring it together into a cohesive ball. Flatten the ball into a 1-inch thick disc, wrap it tightly in plastic wrap, and refrigerate for at least 1 hour.
Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
On a lightly floured surface, roll the chilled dough out into a 12-inch circle that is about 1/4-inch thick. Transfer the dough to the prepared baking sheet.
In a small bowl, whisk together the egg yolk and heavy cream. Use a pastry brush to lightly coat the entire surface of the dough with the egg wash.
Bake for 25 to 30 minutes, or until the crust is deeply golden brown and firm to the touch. Transfer the baking sheet to a wire rack and let the crust cool completely before adding your desired filling.