In a large bowl, mix the tapioca, idli rava and 1.5 cups of curd and mix well.
Once all the ingredients are mixed well, cover and soak for 8 hours or overnight.
In the morning, slightly mash up the batter, adding the rest of the 1/2 cup curd with 2-3 tsp water
Make the tempering with the oil. Mustard seeds and dal till the dals turn golden brown
Add this tempering to the batter and mix lightly
Then add the chopped green chillies, coconut, coriander and mix lightly
The batter should be thick at the same time with a dropping consistency (see video for the right texture)
Spoon the batter into greased idli moulds, filling them 90% (as they expand a bit upon steaming)
Steam them for 10-12 mins or until a skewer comes clean (or use wet hands to check the Idli - if they dont stick, the idlis are done)
Turn off the flame now, wait for 4-5 mins to de-mould
Serve warm with any spicy chutney / sambhar
Video
Notes
Tips and tricks to make the best Sabbakki Idli / Sago Idli
Soak for minimum 8-12 hours or overnight
Do not over mix while making the batter.
Lightly sour curds is best used. Use thick curds or slightly beaten, not buttermilk as the batter becomes watery.
If making this Idli for vrat, skip mustard seeds or anything else you don't use for vrat recipes. This list of restricted foods varies from family to family, so proceed accordingly.
Usage of soda is optional, but as the batter was naturally fermented, I didn’t use it at all
Tempering is also optional, but it added to the taste greatly
Skip the chillies if making for the kids
Coconut adds softeness to the idli, make sure not to skip it.
Once the idlis are steamed, run a dry spoon / knife to demould after it cools for 3-4 mins else the idlis turn soggy and mushy
Keyword Basic Idly Recipe, How to make Soft Idli, Idli Recipe, Idli varieties, Sabbakki Idli, Sabudana Idli, Sabudana Idly, Sago Idli