Urad Dhal - 1 cup, washed and soaked with 1 tsp Fenugreek in Water for at least 4 hours
Idly Rice - 4 cup, washed and soaked in Water for at least 4 hours
Salt
In a wet grinder add the soaked Urad Dhal and grind until smooth and fluffy. Transfer the batter to a large bowl and keep aside.
Next, grind the soaked Idly Rice until smooth and pour over the Urad Batter.
Mix both the Batters together until they blend to form a single smooth Batter.
Rest the Batter overnight and allow to ferment.
When you are ready to make Idly, season the Batter with required Salt and mix again until well blended.
Pour some Water in the Idly cooker and bring to boil (until the steam comes through its vents).
Grease the Idly plates with Oil and pour a ladle of Batter into each mold in the Idly plate. Place the Idly plates inside the Idly cooker and steam the Idly for about 12 minutes and remove from heat.
Sprinkle Water on the Idly plates and allow the Idlies to cool down.
Once the plate is cooled, remove the Idlies from the Idly plate and transfer to an insulated container.
Serve warm Idlies with Chutney, Sambhar and Vadai.