The dish consists of a deep fried potato dumpling placed inside a bread bun (pav) sliced almost in half through the middle. It is generally accompanied with one or more chutneys. It is also called Bombay Burger in keeping with its origins and its resemblance in physical form to a burger.
Heat the oil in non-stick pan. Add mustard seeds, asafoetida and curry leaves. When they starts splutter, add ginger paste and green chilies and saute few seconds.
Add mashed potatoes and spices and mix well. Remove from the flame and add chopped fresh coriander and keep aside to cool.
Divide the mixture into equal portions and shape into round balls.
Combine besan, carom seeds, salt and turmeric powder in separte bowl. Add enough water to make thick consistency batter like pakoras.
Dip the each vada balls into the batter and deep fry in hot oil till to golden brown. Drain them and keep aside.
Slice each bun or pav into half and spread some green chutney and place one vada. Topped with dry garlic chutney and fried chili. Serve immediately with tea or coffee.