Ingredients

• 1 cup - parboiled rice
• 1/4 cup - beaten rice
• 1-2 cups - sour butter milk
• 1/4 tsp - cooking soda
• oil
• salt

How to Make Plain Sponge Dosa

• Soak washed rice and aval together in buttermilk overnight.
• Grind to a smooth batter, a little thinner than the regular idly dosa batter.
• Add salt and cooking soda and mix well.
• Heat a tawa and pour a ladle full of batter and drizzle oil; don't spread the batter.
• Cook covered over a medium flame for a minute.
• Serve with a spicy chutney or sambhar.