IDLI (steamed rice cake)

I decided to make idlis today,and they turned out to be really soft and fluffy.i feel its the most healthiest food for breakfast.My recipe for idlis goes like this!

Ingredients
1 cup urad dal(split black lentil)
2 3/4 cups idli rava(cream of rice)
1 tbsp yogurt
salt

method:
soak urad dal for 3-4 hrs.Drain the extra water,grind it well with medium tight consistency.Now add the idli rava to the batter.mix well add yogurt and cover it tightly.Wrap a thick cloth around the vessel and keep it in the warmest place of your kitchen.(I placed it in oven)Allow it to ferment for whole night.
The next morning the batter will be double its volume ;if its fermented properly.
Add salt mix well, consistency should be thick and smooth.
Grease the idli plates of idlistand and pour in the batter.Steam it in pressure cooker or steamer.(i used pressure cooker,10 minutes on high flame and 6 minutes on medium flame).
Remove it and serve hot with chutney and sambhar!
Tips for soft cotton like idlis
1) If u add salt before fermentation make it a point to note its not iodized.
iodized salt and chlorinated water interfere with fermentation.
2) u can also add 1 tsp dry yeast for it to ferment well.
3) Adding few grains of soaked fenugreek seeds while grinding will help idlis come soft.