First disclaimer: I am a CHOW HOUND and although I have some conditions that should have me searching for lower fat dishes etc. I subscribe to the "full fat, smaller portion" way of eating rather than substituting for the real deal.
Yesterday during a work out the instructor told the class how she made brownies substituting diet coke for oil? and if you make something "white" use gingerale???? I thought I'd heard it all until this. Does anyone bake with soda as a sub.????