Add the chopped celery, shallots, and cilantro. Cover and cook for 4 to 5 minutes and turn off the heat.
Drain the water and let it cool for 15 minutes.
Add the parboiled vegetables to a mixer jar and puree them.
Now add this puree to the dosa batter.
Add extra water (I added about ¾ cup of water) and salt, if needed, and mix well. The celery dosa batter is now ready.
Heat a well seasoned cast-iron pan, and when it is hot, reduce the heat to medium.
Take a spoon/ladle full of batter and pour it on the pan. Spread it evening from the center towards the edges. (Spread it thin for crispier dosa) Spread some oil around the edges; ½ tsp should be sufficient.
Allow it to cook. Usually, it takes about 45 to 50 seconds. Make sure the top side is wholly cooked.
Now using a flat spatula, loosen the edges and flip the dosa.
Cook for 15 to 20 seconds and remove it from the pan.
Similarly, make the dosa with the remaining batter and serve hot with chutney.
Video
Notes
You can add up to ten celery sticks for this measure. Please check the variation section of the post for more options.
Adjust the salt as needed.
If you like spicy dosa, add one or two green chilies along with celery or ground pepper to the batter.