I seem to recall there were sourdough waffles too. I'd ask him about it, but he doesn't remember

I see there are plenty of recipes on the web, but I can't recommend one from experience. I just remember that there was something really good about the sourdough flavor in pancakes and waffles where regular pancakes/waffles were just sweet. Buttermilk pancakes can be very good too, but sourdough ones rule!