Instructions

1. In a heavy bottom pan, heat the oil. When hot add the mustard seeds, the lentils. Saute till they splutter. Now add the chopped onions, green chillies and the curry leaves. Keep stirring frequently over medium flame till the onion changes colour and turns translucent.
2. Add the turmeric and the mashed potatoes along with salt to taste. Mix thoroughly. Before taking off the flame, finally add the lemon juice and the chopped coriander leaves. The potato filling is ready.
3. To make the stuffed Idlis, take the idli plates and pour little of the batter into each depressions.  Add a tbsp of the potato stuffing at the centre of each. Next cover the stuffing with more of the idli batter.
4. Keep the idli plate in the steamer and steam for 10 mins.
5. Remove the stuffed idlis into a casserole to keep them hot. Repeat making more of the stuffed idlis by using rest of the batter and the filling.
6. Once done, serve with coconut chutney and sambar.