What you will need:
Potatoes - 3 medium sized

Onions - 2 medium sized, sliced

Green chillies - 6 finely chopped

Mustard seeds - 1 tsp

Cumin seeds - 1/2 tsp

Turmeric powder - 1/4 tsp

Curry leaves - 2 strands

Lemon juice - 2 tsp

Coriander leaves - few finely chopped

Oil - 5 tsp
Salt to taste

Cut the potatoes into small cubes.

Heat oil in a pan. Add cumin seeds and mustard seeds. When they crackle, add chopped green chillies, curry leaves, turmeric powder and sliced onions. When the onion turns slightly brown, add the cubed potatoes and salt. Cover and cook. Add little water if required. When the potatoes are done, add the lemon juice and garnish with coriander leaves.