Crispy dosa

For this preparation you will need:
Urad dhal: 1/2 Cup
Boiled rice-1 Cup
Sona masoori rice-1 Cup
Toor dhal,Channa dhal and Moong dhal and little methi seeds-6 seeds
All adding to 1/2 Cup
So in total you will need 3 cups.
Soak the above for a minimum of 5 hrs and grind to a fine paste using the same water that you used to soak the rice and dhals.Do not add to much water as this can make the batter too liquid in consistency.Use a wet grinder or mixie to make the paste.
Add a pinch of baking soda to the batter and allow to ferment over night or for at least 9 hrs.
Mix well after the batter has fermented with little salt.
Make small to medium sized dosas using a round deep spatula or cup on a non stick pan.You can add little more water to the batter if you desire thin layered dosas.
Serve hot with a little ghee and peanut or pudina chutney.