Caramel Apple with bourbon

6 large Granny Smith apples (about 3 lb.) 2 tablespoons all-purpose flour 2 cups firmly packed light brown sugar, divided 1 cup butter, divided 1 1/2 cups[...]

1 2/3 cups all-purpose flour 3/4 cup butter, cubed 2/3 cup powdered sugar 1/3 cup cornstarch 2 tablespoons butter 2 cups peeled and diced Gala apples 1/3 cup[...]