Wash the Idly rice 3-4 times. Soak them for 3-4 hours. Drain water and keep it aside.
Take Urad Dal and dry roast them in medium flame till nice smell comes and slightly golden.
Cool and grind to smooth powder in mixer. Sieve the flour and keep it ready.
Take half of the coconut and scrape the coconut into pieces.
Remove the outer black layer and shred it in mixer.
To this add the washed rice
Add little water and grind to smooth paste like Idly Batter.
To the mixture add urad dal powder, asafoetida, salt, sesame seeds and butter and knead to smooth dough.
Using murukku aachu of your choice and make it in required shapes. I used my idiyappam plate and spoon to make spiral murukku. It is easy to drop directly in oil.
Heat oil in kadai
Fry the shaped murukku in hot oil till crisp and drain them in tissue.
Cool them completely and store the murukku in air tight container.
Add extra butter to dough and make butter murukku.