Bourbon Apple Tart with Brown Sugar Crumble

Name: Bourbon Apple Tart with Brown Sugar Crumble
Ingredients: For the tart dough; 2 cups all purpose flour; 1 cup cold butter, 1 stick; 1 tablespoon sugar; 3 tablespoons cold water; 3 tablespoons cold vodka; 3/4 teaspoon salt; For the apple filling and crumble topping; 4 green apples, peeled, cored, and sliced into; 1/2 of 1 lemon, juiced; 3/4 cup brown sugar, plus 6 Tbsp. for crumble; 9 tablespoons butter; 1/4 cup bourbon; 2 tablespoons apple butter; 1/4 teaspoon baking powder; 1 teaspoon vanilla; 6 tablespoons all purpose flour; 6 tablespoons oats