Yes, yes, I am lagging in my posts! Remember this faux wheat Sourdough bread with fermented lentil and rice batter. I used the same batter to make a glutenfree version too! the sour taste depends on the fermentation. you can keep the batter longer and let it ferment for a more sour taste. To read more about how to make the Dosa crepe batter- fermented lentil and rice batter see my Dosa post here.
1/2+ cup finely ground gf Oats (or half Oat flour and half other gf flour)