1/2 box of yellow cake mix
1/2 cup sour cream
2 eggs
1/3 cup water
1 Tbsp cinnamon + 2 tsp cinnamon
2 Tbsp + 2 tsp cocoa
1/2 cup chocolate chips
1/2 can condensed milk
1/8 tsp salt

Mix together cake mix, sour cream, eggs, water and 1 Tbsp cinnamon.  Pour into greased 9-inch pie plate. Sprinkle 2 tsp cocoa evenly on top of the batter. Then sprinkle the chocolate chips. Bake 20- 25 minutes at 350 degrees. Serve warm with chocolate cinnamon sauce:

Sauce:
Mix together condensed milk, 2 Tbsp cocoa and 2 tsp cinnamon and salt. Microwave to a boil. Pour over the cake.