Pulse the flour, salt, and sugar in a food processor, then add the cold cubed butter. Pulse until the mixture resembles coarse meal with pea-sized butter pieces visible. Drizzle in ice water one tablespoon at a time, pulsing between additions, until the dough just begins to come together.
Turn dough onto a lightly floured surface and press into a disk—no kneading required. Wrap in plastic and refrigerate for at least 1 hour or up to 2 days.
Roll your chilled dough on a floured surface to about 12 inches in diameter. Transfer to a 9-inch pie dish, trim excess leaving a 1-inch overhang, then fold and crimp the edges. Freeze for 15 minutes while preheating your oven to 375°F (190°C).
Line the crust with parchment paper and fill with pie weights or dried beans. Bake for 15 minutes, then remove weights and parchment and bake for another 5 minutes until the bottom is just beginning to set but not brown.
While the crust cools slightly, whisk together the pumpkin puree, brown sugar, all spices, and salt in a large bowl until well combined. In a separate bowl, lightly beat the eggs, then stir in the evaporated milk and vanilla. Gradually incorporate the egg mixture into the pumpkin mixture, whisking until completely smooth.
For an ultra-silky texture, strain the filling through a fine-mesh sieve to remove any fibrous bits.
Reduce oven temperature to 350°F (175°C). Pour the filling into the partially baked crust. If the crust edges are browning too quickly, shield them with foil or a pie crust shield.
Bake for 50-55 minutes, or until the center reaches 175°F on an instant-read thermometer. The perfect pumpkin pie should still have a slight wobble in the very center—it will continue to set as it cools.
Allow the pie to cool completely on a wire rack for at least 2 hours before refrigerating. For optimal flavor development, refrigerate overnight.