I tried this yummy instant dosa recipe from Sankeerthanam. It tasted more like aapam. I had it with mysore rasam.
As I followed the recipe verbatim, you can click the above link for recipe.
Notes:The batter should be thinner than regular dosa batter but not as thin as rava dosa batter.
Pour the batter in a circular fashion starting from outside to inside. Allow the batter to spread by itself.
I also added 1/4 tsp of hing to the batter.
