Set aside 1T. cake mix. Set aside 1 1/2 c. apple pie filling.
In a mixing bowl, combine eggs, sour cream, water, oil,extract and remaining cake mix and pie filling. Beat on medium speed for 2 minutes. Pour half into a greased bundt pan.
Combine the brown sugar, cinnamon and reserved cake mix; sprinkle over batter. Spoon reserved pie filling over batter to within 3/4 inch of edges; top with remaining batter.
Bake at 350 for 40-45 minutes or until it tests done. Cool for 10 minutes before removing from pan to rack.
In a small bowl, combine glaze ingredients. Drizzle over cooled cake.