HEAT oven to 400ºF.
MIX brown sugar, cinnamon and 1/2 cup flour in medium bowl. Cut in 1/4 cup (4 Tbsp.) butter with pastry blender or 2 knives until mixture resembles coarse crumbs. Stir in bacon.
PLACE crust in 9-inch pie plate as directed on package for one-crust filled pie. Place apples in large bowl. Add granulated sugar, remaining flour, bourbon and vanilla; mix lightly Spoon into crust. Cut remaining butter into small pieces; place evenly over apples. Cover with crumb topping. Place on baking sheet.
BAKE 30 min. Reduce oven temperature to 350ºF; bake 30 min. or until apples are tender. Cool.