Preheat oven to 325 degree F.
Grease a 9 x 13 baking dish. I use bakers joy.
In a large bowl, stir together the cake mix, flour, sugar, and salt until well mixed.
Add the water, sour cream, vegetable oil, egg whites, and both extracts. Then beat with an electric mix on low until all of the ingredients are mixed and moistened yet some lumps still remain. Four to five minutes.