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

Glaze:

1 1/2 c. powdered sugar
1/2 stick butter, melted
6 tbsp. milk

Mix all ingredients together except brown sugar and cinnamon. Pour into a greased 9 x 13-inch glass baking dish. Mix together brown sugar and cinnamon. Swirl into batter.

Bake at 300°F for 1 hour. While cake is hot, poke holes in top with fork.

Mix glaze ingredients together and pour over hot cake.