Caramel Pumpkin Pie

Blend together flour, butter, and salt in a bowl with your fingertips or a pastry blender (or pulse in a food processor) until most of mixture resembles coarse meal with some small (roughly pea-size) butter lumps. Drizzle evenly with 4 tablespoons ice water and gently stir with a fork (or pulse in processor) until incorporated. Squeeze a small handful of dough: If it doesn't hold together, add more ice water, 1/2 tablespoon at a time, stirring (or pulsing) until incorporated, then test again. (Do not overwork dough or pastry will be tough.) Turn mixture out onto a lightly floured surface and divide into 4 portions. With heel of your hand, smear each portion once or twice in a forward motion to help distribute fat. Gather all of dough together with scraper and press into a ball, then flatten into a 5-inch disk. Chill dough, wrapped tightly in plastic wrap, until firm, at least 1 hour. Put oven rack in middle position and preheat oven to 375 °F. Roll out dough on a lightly floured surface with a lightly floured rolling pin into a 14-inch round, then fit into quiche pan and trim excess dough flush with rim of pan. Chill until firm, about 30 minutes.