India is such a vast country both geographically and gastronomically. Sometimes you will be surprised to see some dishes which are eaten across two ends of the country with same love. Recently I had same experience while eating breakfast of Idlis. We are now so used to eating Idli-Sambhar and chutney, that we might not think about any other combination. In Orissa, people used to eat sweet Idlis for breakfast without any need for chutney or sambhar. These idlis are prepared in similar fashion like normal idlis.
All you need is to idli batter (2 cup rice + 1 cup urad dal soaked for 6-8 hrs and grounded to paste). Make sure the batter is fermentated for 6-8 hrs (or overnight). Add salt to taste. For the sweet filling, mix grated coconut and jaggery in equal proportion (adjust amount of jaggery depending on your sweet tooth). Now pour the idli batter in the idli moulds. You can add the filling on the batter or you can have layers like batter then filling and then again batter. Steam the idlies for 10-15 min.
You can eat these idlis as it is for breakfast.
Or if you want to serve some special sweet then, you can prepare sweet idlis in coin form and serve with chilled rabadi.