Deborah Madison's Apricot Fold-Over Pie

Ingredients (15)

• Chilled Pastry for Pies or Galettes (recipe follows)
• 8 to 10 cups pitted and quartered apricots (about 2 1/5 pounds)
• 1/3 to 2/3 cup organic sugar, plus extra for the crust
• 3 tablespoons all-purpose flour
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon ground coriander or freshly grated nutmeg
• 2 tablespoons unsalted butter, melted
• 1 1/2 cups all purpose flour
• 1/2 cup whole wheat pastry flour
• 1/2 teaspoon salt
• 1 tablespoon organic sugar
• 12 tablespoons (1 1/2 sticks) cold unsalted butter, cut into small pieces
• 1 egg yolk
• 1/2 teaspoon vinegar
• 5 to 6 tablespoons ice water