2 cup sago (Sabudana),
2 medium sized boiled potatoes,
4-5 green chilies,
1 small piece ginger
2 tbsp coriander leaves chopped,
1/2 cup roasted peanut powder,
2 tsp cumin seeds,
1 tsp lemon juice (optional),
rock salt to taste,
oil for frying.

Soak sabudana in water. Drain off all the water and keep it aside for one hour  (Depending on the quality, sometimes the sago needs to be soaked overnight in a little bit of water).

Mash the boiled potatoes. Make a paste of ginger and chilies in a grinder.

Mix the sago, ginger-chilies paste, mashed potatoes, coriander leaves, peanut powder, cumin seeds and lemon juice. Mix it thoroughly using a little bit of water.

Make small balls of the mixture and gently press them to make flat.

Heat oil in a pan. Deep fry the vadas till golden brown and crispy.

Enjoy with your favorite chutney.