So I immediately called Momma (did you see that one coming?). She laughed at me and said who knows!? We talked the remainder of the baking time while I watched it very carefully. It looked OK. When I took it out, I thought it looked a little flakier, but basically it looked the same. I tasted a small sliver, it tasted OK, too. A little different, but maybe that is my mind playing tricks one me. I am very susceptible to the power of suggestion. (I am convinced that I would be CURED by a placebo if I believed in it enough.)
Well, he tasted both cookies. He said they were both OK. He could definitely tell a difference, though. He said that I should send them all to the luncheon because neither batch was bad, just different. He chose the ones with the baking SODA, so I guess Toll House knew what they were doing after all. Hey, I performed a public service for anyone who ever wondered if baking soda or baking powder are the same!! You're welcome.