First of all make the mustard paste by grinding all the ingredients.

In a pressure cooker you can put 2 tsp of oil.

Then add the punch phoron add red chilli in it and when the mustard in the panch phoron crackles then add the chopped onion and saute it for sometime till it becomes golden in colour.

Then add the chopped tomato in it and cook it for 2 minutes and then add the chopped potatoes and the soaked moth dal in it.

Then add the turmeric powder and salt and mix it well and cook it for 5 minutes.

Then add the mustard paste along with some water and cover the lid and cook it till one whistle.

Switch off the flame and wait till the gas automatically released from the cooker.

Then add the remaining 1 tsp of mustard oil, chopped coriander leaves and chilli(optional) in it and mix it well.

Taste better when cool completely to room temperature and garnish with some chopped coriander leaves.

Goes well as a side dish with plain rice.

You can also cook it in pan.