Step 1

Mix the cake mix, sour cream, eggs, sugar & oil.

Step 2

In separate bowl stir together the brown sugar & cinnamon.

Step 3

Pour 1/2 of the cake mixture into 9×13 pan. Then add the brown sugar cinnamon mixture.

Step 4

Pour remaining cake batter on top.

Step 5

Bake at 275 for 50 - 60 minutes.

Step 6

While cake is baking, mix the icing ingredients all up together and pour over cake after it's cooled slightly.

Step 7

Enjoy!