1 pkg. yellow cake mix
1/4 c. water
4 eggs, beaten
1 (3 oz.) vanilla instant pudding
1/2 c. salad oil
1 c. sour cream
1/2 c. light brown sugar
3 tbsp. cinnamon
Chopped nuts

Mix first 6 ingredients together. Pour into a greased and floured tube pan. Combine sugar, cinnamon and nuts. Swirl through batter. Bake at 350 degrees for 50 minutes.