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

Grease and flour 2 loaf pans. Mix first 6 ingredients. Place 1/4 mix in each of 2 loaf pans, sprinkle with 1/2 cup cinnamon/sugar mix and repeat. Marble with a knife. Bake at 350 degrees for 40 to 45 minutes.