To a dry mixer jar : add 1 cup rolled oats.
Grind it few times to get a slightly coarse oat flour. Set aside.
To a pan : heat 2 teaspoon oil then add 1 teaspoon mustard seeds let it crackle. Then add 1 no green chilli, 1/4 teaspoon ginger, 1 teaspoon curry leaves all finely chopped and hing. Saute for few seconds.
Add 1/4 cup carrot finely grated. Saute for a minute.
Add prepared oat flour.
Add 1/2 cup wheat rava.
Mix it well. Saute for 2 mins and switch off.
Cool down then transfer to a bowl - add 1/2 cup thick curd, 1/2 cup water and salt as required. Mix it well.
Keep covered for 5 mins.
Open and mix - it must have become thick now add 1/4 cup water.
Add 1/4 teaspoon cooking soda. Be quick after cooking soda is added.
Mix gently do not overmix.
Grease idli plates with oil.
Then immediately add batter to each hole in the idli plate. Repeat to finish for the other plate too.
Add 2 cups of water to idli steamer. Heat water, let it start to boil.
Place the idli plates inside.
Cook covered for 10-12 mins or until the idlis are done. Remove then set aside for 2 mins atleast before removing.
Dip a ladle in water. Gently remove the idlis. Dip the laddle in water as and when it sticks.
Oats Idli is ready to serve. I got around 12 idlis.
Serve Oats Idli hot with your favorite chutney or idli podi.