Ingredients:
250 g - boiled and peeled potatoes
1 - small onion, minced
1/4 tsp - mustard seeds
1 tsp - urad dal
2 - green chillies, minced
handful of coriander leaves
a few curry leaves, sliced
1/4 tsp - turmeric powder
a pinch asafoetida
1 1/2 cups - gram flour
salt and chilli powder to taste