Sanna polo, unlike the other dosas is not served for breakfast. Instead, it is eaten as a side dish with rice and dal. I like this dosa spicy, the spicier the better!! The mix can also be refrigerated for a couple of days. If you freeze the batter, it will remain fresh for upto 10 days.
What you will need:
1/2 cup toor dal
1/2 cup rice
10 fried dry red chillies
tamarind about the size of a lime
1/2 cup grated coconut, fresh or frozen
1/2 cup onion chopped
1/2 cup cabbage chopped
salt to taste

How to prepare:
Soak toor dal and rice for about 2 to 3 hours. Drain the water and then grind it into a paste along with red chillies, tamarind, coconut and salt. Do not add too much water while grinding. To this mixture add onion and cabbage and mix well. Heat the pan. Take a small amount of the mixture and spread it on the pan with your hands. After about 2 minutes, turn around the pancake and fry on the other side.
Serve hot. This dish is usually served for lunch or dinner as a side dish with rice and curry.

Instead of the cabbage, you can add twice the amount of onion to make this pancake.