This recipe works well mixed by hand. (Do not use electric mixer)

Mix together cake mix, pudding, and flour. Add sour cream, oil, and water. Add eggs last, one at a time. Blend well after each addition. Mix sugar and cinnamon in a small bowl and set aside. Spray Bundt pan well with cooking oil spray. Sprinkle 1/3 cinnamon sugar mixture into the pan. Next pour 1/2 cake batter and spread evenly over pan, then 1/3 cinnamon and other 1/2 of cake. Finish with 1/3 cinnamon mix.

Bake at 350 for 45-50 minutes.

Icing- mix together 1 cup powdered sugar(may need more) 1/2 teaspoon vanilla, and 1 tablespoon milk. Drizzle on top.