Blend together flour, butter, and salt in a bowl with your fingertips or a pastry blender just until mixture resembles coarse meal with some small (roughly pea-size) butter lumps.
Drizzle 3 tbsp ice water evenly over mixture and gently stir with a fork (or pulse) until incorporated.
Squeeze a small handful of dough: If it doesn't hold together, add more ice water, 1/2 tbsp at a time, stirring (or pulsing) until incorporated.
Do not overwork dough, or pastry will be tough.
Turn out dough onto a work surface.
Divide dough into 4 portions.
With heel of your hand, smear each portion once or twice in a forward motion to help distribute fat.
Gather all dough together with pastry scraper.
Press into a ball, and then flatten into a 5-inch disk.
Wrap dough in plastic wrap and chill until firm, at least 1 hour.
Ready in 1 1/4 hour.