Wash and soak the red rice for 4 hours.
Wash and soak aval for 30 minutes.
Add soaked red rice, aval, grated coconut and karupatti to a mixer.
Add water little by little and grind into a smooth batter.
Add a pinch of cardamom powder and mix well.
Transfer the batter to a bowl and ferment for 8 hours.
Heat a kuzhi paniyaram pan and add a little ghee in each hole.
Pour the batter into each hole.
Cover and cook for 2–3 minutes.
Turn the paniyaram and cook the other side for 2 minutes.
Cook until golden brown and soft inside.
Remove and serve hot sweet kuzhi paniyaram.