1-1/2 cups all-purpose flour
3 tablespoons sugar
1/4 teaspoon plus 1/8 teaspoon baking powder
1/4 teaspoon plus 1/8 teaspoon salt
6 tablespoons cold butter
1/4 cup fat-free milk
1-1/2 teaspoons cider vinegar
FILLING:
5 cups sliced peeled tart apples
2 cups sliced peeled ripe pears
1/3 cup raisins
1/2 cup plus 1 teaspoon sugar, divided
1/4 cup all-purpose flour
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon ground cloves
3/4 teaspoon rum extract
1 egg white