1 cake mix (any flavor)
1 12 oz. can of any diet soda (match the flavor to the chosen cake mix)
Mix together the above two ingredients for 30 seconds on low speed and for 2 minutes at medium speed.
Pour into prepared pan and bake for the amount of time suggested on cake mix box.
You could make a simple syrup using Splenda, water and flavoring and pour over the baked cake.
This simple recipe tastes much like the full fat and calorie version. It cuts the calories to 170 per 1/12 of the cake which is a generous portion. And it is so simple.