We will be using leftover idlis for this recipe.
Cut idlis into small bite-size pieces.
Deep fry these idlis on a medium flame till idlis turn golden brown and crisp.
Fry all the idlis and transfer them onto an absorbent paper.
In a pan, heat 2 tablespoons of oil. Add mustard seeds and let them splutter. Add thing (asafoetida), finely chopped green chillies and curry leaves.
Add finely chopped onions and saute till onions are translucent.
Add finely chopped tomatoes.
Cook tomatoes till they are soft.
Once onion-tomatoes are cooked, add red chilli powder, turmeric powder and sambar masala powder. Here you can also add pav bhaji masala or garam masala.
Mix the masala and add just 1/4th cup of water so that the masala doesn't burn.
Add sugar and salt to taste. Idlis already have salt in them hence add salt for masala only.
Add the fried idli and mix well with the onion-tomato masala.
Lastly, add freshly chopped coriander leaves.
Crispy & delicious Masala Idli is ready to serve. Serve immediately.