1Heat oven to 350°F. Spray bottom of 13x9-inch pan with cooking spray.
2In large bowl, cut butter into cookie mix using fork or pastry blender. Stir in egg until mixture is crumbly.
3Reserve 1 1/2 cups cookie mixture. Press remaining cookie mixture into bottom of pan. Bake 15 minutes. Sprinkle apple evenly over crust. In small bowl, mix caramel topping and flour; drizzle over apples. Sprinkle reserved cookie mixture over apples.
4Bake 20 to 25 minutes or until golden brown. Cool completely, about 2 hours. For bars, cut into 9 rows by 4 rows.