crust (as a note, this makes 3 pie crusts)
4 cups sifted all-purpose flour
1 tablespoon sugar
3 teaspoons salt
1 large egg, lightly beaten
1 teaspoon white vinegar
1/2 cup ice cold water
1 1/2 cups cold unsalted butter, cut into pieces (3 sticks or 24 tablespoons)

filling
6 large apples, peeled and thinly sliced
2 1/2 tablespoons flour
1/2 teaspoon cinnamon
1/2 cup bourbon
1/2 cup apple cider
1/2 cup loosely packed brown sugar
3 tablespoons unsalted butter
1 teaspoon vanilla extract

oatmeal cookie crumble
1 1/2 cups old-fashioned oats
3/4 cups loosely packed brown sugar
1/4 cup all-purpose flour
1/4 teaspoon cinnamon
1/4 teaspoon salt
6 tablespoons unsalted butter, softened