1 pkg. yellow cake mix
1 pkg. instant vanilla pudding
1 c. sour cream
3/4 c. hot water
1/2 c. oil
4 eggs
1/2 c. sugar
2 tsp. cinnamon

Blend together first 6 ingredients. Mix sugar and cinnamon together and layer with batter in greased bundt pan. Bake 45-50 minutes at 350 degrees.