1 box yellow cake mix
2/3 c. oil
1 c. brown sugar
1 c. sour cream
4 eggs
3 tsp. cinnamon

Mix cake mix, eggs, oil and sour cream. Spread 1/2 batter in a greased and floured 9x13 pan. Mix brown sugar and cinnamon and sprinkle over batter in pan. Spread rest of cake mix on top. Poke holes in to of cake after done. Bake at 350 degrees.

FROSTING:

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

Mix and pour over cake while hot.