1. In a small bowl, combine the flour, sugar and salt. Using a fork, stir in oil and butter until dough is crumbly. Gradually add enough water until dough holds together. Roll out between sheets of plastic wrap into an 11-in. circle. Freeze for 10 minutes.
2. Remove top sheet of plastic wrap; invert pastry into a 9-in. pie plate. Remove remaining plastic wrap. Trim and flute edges. Chill.
3. Roll pastry scraps to 1/8-in. thickness. Cut with a 1-in. leaf-shaped cookie cutter. Place on an ungreased baking sheet. Bake at 375° for 6-8 minutes or until edges are very lightly browned. Cool on a wire rack.
4. In a large bowl, beat the egg, egg white, sugars, salt and spices until smooth. Beat in pumpkin. Gradually beat in milk. Pour into pastry shell. Bake at 375° for 45-50 minutes or until a knife inserted near the center comes out clean. Cool on a wire rack. Garnish with leaf cutouts. Refrigerate leftovers. Yield: 8 servings.