1. Preheat oven to 350 degrees F. Spray 12 cup bundt pan with butter flavored cooking spray. Set aside.
2. In a large mixing bowl, combine cake mix, eggs, pumpkin, 2/3 cup evaporated milk, and applesauce. Using electric mixer, beat at medium speed for 2 minutes. Pour into bundt pan.
3. Bake 40-45 minutes or until toothpick comes out clean. Cool in pan on wire rack for 25 minutes; invert onto rack to cool completely.
4. Meanwhile, in a small sauce pan heat 3 Tbsp. of evaporated milk over medium heat just to a boil. Remove from heat and add white chocolate chips, stir until smooth. Stir in cinnamon. Drizzle glaze over cake.