Apples Baked In Pastry With Plum Sauce

Name: Apples Baked In Pastry With Plum Sauce
Ingredients: 3 3/4 cups all-purpose flour; 3 tablespoons sugar; 3/4 teaspoon salt; 1 stick plus 7 tablespoons cold unsalted butter, cut in small pieces; 1 large egg; 1 large egg yolk; 1/2 cup plus 3 tablespoons ice water; 6 Golden Delicious apples, cored; Three 3-inch cinnamon sticks, broken in half; 1 large egg, beaten with 1 tablespoon of water; 2 1/4 pounds Italian prune plums, or other red or black plums, pitted and cut into 1/2-inch wedges; 1/2 cup sugar; 2 tablespoons Armagnac