Andra Schwab
Hey there...I've made this a few times, and I finally figured out what adjustment was needed.  My boys complained of a "sour" taste...I kept thinking it was my chocolate chips and so I discarded them and bought new ones.  Same taste...but less this time.  It's because of the baking powder I think.  Either...this recipe calls for way too much [which is what I'm thinking] or baking powder goes bad and mine has gone bad.  thoughts?  not the most experienced baker.