and soak dal and rice together in plenty of water overnight.
Drain grind to a soft batter a fine grain should be felt in it.
not make the batter thin.
It should be thick enough to shape vadas.
Add ginger, coconut, pepper corns, cumin seeds & salt and beat well
with palm to incorporate air.
oil, wet palm and take an idli sized lump on fingers palm side up.
Make a hole in the middle with thumb.
Slip gently into hot oil.
5-6 at a time on medium flame.
Serve hot with chutney and sambar.