1 yellow cake mix
1 c. sour cream
1 (3 3/4 oz.) box instant vanilla pudding
4 eggs
1 c. water

Beat above ingredients together for 4 minutes.

Mix together: 3 tsp. cinnamon

Grease and flour bundt pan good. Pour 1/3 of cake batter in pan and sprinkle with 1/2 of cinnamon and sugar mixture. Pour another 1/3 or batter in pan and sprinkle the rest of sugar and cinnamon over batter. Pour rest of batter in pan. Bake 50 to 60 minutes at 325 degrees. Drizzle thin powdered sugar frosting over cake while warm.