Grind suji till becoming a fine powder. Take a bowl and add curd, suji, wheat and rice flour. Mix it well and add salt. Leave it for 10 minutes. Before make dosa add baking soda and mix it very smooth paste. Add water also as per required to make a fine paste
Mashed boiled potatoes fry in oil, jeera, rai, chopped onion, salt, red chilli powder.
Heat tawa and oiling it spread suji better on tawa from center to ediges. Spread potato masala on dosa. Let dosa getting brown by spreading oil at ediges on dosa.
Fold it and serve dosa with sauce or sambhar.
