1 box yellow cake mix (plain)
1 box vanilla instant pudding (3 1/2 oz.)
4 eggs
1/2 pt. sour cream
1/2 c. vegetable oil (Crisco oil or Wesson recommended)
2 to 3 tbsp. sugar (granulated)
2 tsp. cinnamon
Chopped nuts (optional)

Mix together cake mix and pudding. Make a well and add eggs, sour cream and oil. Beat with mixer on high speed for 2 minutes.

Pour half of the batter into an ungreased tube pan. Sprinkle half of the sugar, cinnamon and nuts if desired over the batter. Pour rest of batter and spread evenly. Add the rest of the sugar and cinnamon on top.

Bake at 350 degrees for 45 to 50 minutes and test. Cool cake before removing from pan.