1 box yellow cake mix
3/4 c. Wesson oil
4 eggs
1 tsp. vanilla
8 oz. sour cream
1 c. brown sugar
3 tsp. cinnamon

ICING:

2 c. powdered sugar
1 tsp. vanilla
4 tbsp. milk

Mix and pour into a 9"x13" pan first five ingredients. In separate bowl mix brown sugar and cinnamon. Sprinkle over cake. Swirl with a fork. Bake at 325 degrees for 40 to 45 minutes. Mix ingredients for icing and pour over hot cake.