For preparing Kerala Vazhachundu Thoran, first clean the whole green gram well and remove the unwanted stuff from it.
Cook it separately with water in a pressure cooker.
:- Make sure u don't overcook it.
Remove the first 3 to 4 outer covering of the vazhachundu and chop the rest very finely as you do for thoran.
Add coconut oil and turmeric powder into the above chopped kudappan and mix well the whole thing using your hands.
:- This is done to remove the kudappan's serum.
Place together the grated coconut, green chillies, garlic, cumin seeds and curry leaves in a mixer bowl and run it once to make it into a coarse form.
Mix it along with the chopped kudappan mixture.
Heat oil in a pan or a kadai.
Splutter mustard seeds and saute dry red chillies, rice and curry leaves.
Add the kudappan mixture and mix well.
Cover and cook on a low flame.
After about 3 mins, remove the cover and add the cooked green gram into this and mix well.
Continue cooking without the lid on, till done.
:- Make sure Kerala Vazhachundu Thoran doesn't get mashed.
:- You can also add Red gram (Van Payar) instead of Whole green gram or Cherupayar.