This is basically made from tapioca pearls, potatoes. The addition of potatoes to the recipe makes it soft and also acts as a binder for the pancake. The dough is same as of sabudana vada, but this recipe uses no oil. Traditional recipe uses some ground peanuts, but I have not used them here as I ran out of peanuts. Sabudana / tapioca pancake tastes very delicious and is quite filling too.