Sour Cream Pumpkin Pie

Roll out pastry dough on a lightly floured surface with a lightly floured rolling pin into a 13-inch round and fit into a 9-inch glass or metal pie plate. Trim excess dough, leaving a 1/2-inch overhang, then fold overhang under pastry and press against rim of pie plate to reinforce edge. Decoratively crimp edge and chill shell until firm, about 30 minutes. While shell chills, put oven rack in middle position and preheat oven to 375 °F. Lightly prick bottom and side of chilled pie shell all over with a fork. Line shell with foil and fill with pie weights. Bake until pastry is pale golden along rim and set underneath weights, about 20 minutes. Carefully remove foil and weights and bake shell until bottom and side of pastry are pale golden, about 10 minutes more. Cool completely in pie plate on a rack, about 20 minutes. Leave oven on.