Instructions

1. Preheat oven to 350° Fahrenheit.
2. In a large mixing bowl, combine cake mix, sour cream, water, butter and eggs.
3. Pour half the batter into a lightly greased 13×9″ baking pan.
4. In a medium bowl, prepare cinnamon streusel topping by combining flour, sugar, brown sugar, cinnamon, salt.
5. Cut in chilled butter until you get a crumble consistency.
6. Sprinkle half of the streusel mixture on top of the cake batter in the pan.
7. Drop dollops of the remaining batter on top of the streusel mixture.
8. Spread batter gently out to edges of pan.
9. Sprinkle the remaining streusel mixture on top of the cake batter.
10. Bake uncovered for 40-50 minutes or until a toothpick comes out clean when inserted into the cake.