Potato (Boiled cooked and mashed into crumbs): 1 medium
Onion (red or yellow) : 1 big
Green chilli : 2 or 3 slit vertically
Mustard seeds: 1 teaspoon
Cumin seeds: 1 teaspoon
You may add curry leaves. I didn't have curry leaves when I was making it, hence I could not add it.
Salt: as per taste
Coriander powder: 1/4 teaspoon
Hing (Asafoetida): a pinch
Turmeric powder: a pinch
Water : just for sprinkling to avoid the curry from getting stuck to the vessel.
Oil: 2 teaspoons
Method:
Chop onion into chunks (square shapes) . Keep a deep pan on medium heat, add 2 teaspoons of oil. When oil is hot,reduce heat a little and add mustard seeds, and cumin seeds. Wait until the mustard seeds splutter, Then add green chillies, saute it for 5 seconds, then add curry leaves and saute it for a sec. Add the chopped onion. Increase heat to medium. Saute the onion until it is translucent and half cooked. Add salt, coriander powder, turmeric powder, hing. Stir well to combine so that its well coated with all the spices. Then add the potatoes. Break them up so that they don't form chunks in the pan. Mix well to combine it with the onion mixture. Sprinkle water of necessary. Lower heat a little so that the curry doesn't burn. Stir in between until a nice aroma of the curry comes. This will take very less time (approx 5 minutes) as we have already added cooked potatoes. Serve as a side dish for puri, roti, lemon rice etc.. It is best served hot. You can also refrigerate the left over for later use on same day.

