Another authentic Chettinad Recipe is this Vengayam Kos (its generally called Vengaya Kos). This is a weekly dish that is made for Idly/Dosa in every chettinad homes. This is a coconut based gravy and not many ingredients required. It tastes really great. Vengaya Kos will be an option for all who make idly/dosa as breakfast everyday. … More Vengayam Kos/Onion Tomato Gravy with Potato