Soak the moong dal in water for about 4 to 5 hours.

Drain the water from the dal and add: ginger pieces coriander, curry leaves, cuminseeds salt.

Make a paste of these ingredients, but let it be coarse but not fine

Heat the tava and spread the paste on it just as you do it for a dosa.

Sprinkle a few drops of oil over it and also sprinkle the chopped onions over it . After it turns golden brown remove it from the tava and serve hot.

Repeat the process each time you spread the paste on the tava