- Add oats to a grinder and make a coarse powder. Set aside.
- Heat oil in a pan. Fry cashews until golden. Remove and set aside. Add mustard, urad dal and fry until the dal turn golden. Then add curry leaves, green chilies, hing. Saute for 30 seconds.
- Add in Sooji/ Rava, lower the heat to low-medium. Cook sooji for 3 minutes, stirring continuously. Add powdered oats, roast until the mixture turns aromatic. Cool this completely.
- Once cool, pour water and curd to it. Mix to make a thick batter. Set this aside for 15min.
- After 15 mins, the batter turns slightly thick. At this stage add lemon juice and more water if needed to bring it to a consistency like that of idli batter.
- The batter must be thick and not of pouring consistency. But must be smooth and not lumpy.
- Heat a steamer with 2 cups water or as required. Meanwhile drizzle a few drops of oil over the idli plates and grease them.
- In to the batter add salt, carrot, green peas (which were soaked in warm water for 10 minutes before adding to the bowl) Mix to combine.
- Make sure the water is getting hot. Then sprinkle 1 tsp fruit salt - eno to the batter. Gently mix it. Do not over mix.
- Place fried cashews. Fill the greased plates with batter. This must go right away for steaming. Delaying will make the idlis dense.
- When the water in the steamer begins to boil rapidly, place the oats idli stand in the cooker and Steam for 12-13 minutes until idlis are done. Switch off the heat.
- If cooked properly then a skewer inserted it comes clean. Allow them to cool down a bit. Remove them with the help of a spoon.
- Serve oats idli hot with a coconut chutney.