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Soke rice and mash dal over night in different bowls

Drain water in the morning and grind it make a fine think paste not too much thick or not to much liquid

Mix some baking soda and salt in it

Put a dosa pan / non -sticky pan on the stove and wait till it get nice hot greace it with some oil

Spread the dosa batter in a circle give some oil on top

Wait til it turn Golden brown and turn on the other side

Enjoy hot and crispy dosa.