preparation ; 

1. Soak rice for an hour and drain water completely. Spread for 30 mins in a clean cotton kitchen towel to absorb the excess moisture. Grind this to a fine powder in mixie and sieve it to get rice flour.
2. Boil a cup of water in a vessel. Add butter and salt to it and then the flour. I added 1 & 1/2 cups of flour to get the dough. Immediately switch off the flame. the quantity of flour differs depending upon the rice flour quality.
3. The dough should be thick enough like the usual murukku dough. So keep the flour ready to add more if needed. Keep the dough covered. After its cooled down or warm enough to handle, add jeera, red chilli powder, sesame seeds and knead to a dough.
4. You can make the pinch equal amount of dough for making the roll murukku.