Take rice and urad dhal in a bowl, wash and soak in water for 4 hours.
Drain the water and add rice, urad dhal into the mixie jar.
Add cumin seeds and Black peppercorn into it.
Grind all the ingredients in the grinder or mixie coarsely.
Add salt, little water and grind again to a slightly coarse batter.
Transfer the batter into another bowl.
Now add the curry leaves and finely chopped coconut bits into the batter and mix well.The adai batter is ready.
Heat the skillet and once hot, take a small ladle of the batter and spread it evenly in round shape.
Drizzle oil and allow it to cook till golden brown.
Then turn it to the other side and cook in the same way.
It goes best with Dosai milagai podi, butter, jaggery and Podi potta kuzhambu.