1 yellow cake mix
1 (3 3/4 oz.) vanilla instant pudding
3/4 c. oil
3/4 c. water
4 eggs
1 tsp. vanilla

FILLING:

1/4 c. sugar
1 tsp. cinnamon

Mix all together. Beat 5 minutes and put half in bundt cake pan or loaf pans, then sprinkle filling on and spread remaining batter over it. Works real well in bundt pan, real easy coffee cake. Save a small amount of cinnamon and sugar to sprinkle on top.