Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  18 1/4  ozs           lemon cake mix
   1      tsp           baking powder
   1      c             blueberries
   8      ozs           fat-free sour cream -- at room temperature
   4                    egg whites -- whipped
   1      tbsp          oil
   1      tsp           lemon peel -- grated

Preparation:

Preheat oven at 350. Prepare a 12-cup Bundt pan with cooking spray and flour; set aside. In a mixing bowl combine cake mix and baking powder; set aside. In another mixing bowl, combine blueberries, sour cream, egg whites, oil, and lemon peel. Mix dry ingredients with wet ingredients just until moistened. Pour batter into prepared pan. Bake for 40 minutes.