Today blessing of God came on right time!
Koorkan kizhangu (siru kizhangu in tamil, chinese potato in english) is a yummy root vegetable which hits the market during winter season. I had last batch in kitchen store so decided to make it today. 
Sometimes feeling lethargic and looking for shortcuts do turn a boon 
like how it happened to me today. Koorkan kizhangu (chinese potato) is a
 yummy root vegetable. It gives out a nice flavour to the dishes it is 
added too especially in molakootal. Mezhukupiratti (roast) tastes 
awesome. But felt cleaning them was a great task only till yesterday. 
Today i noticed some koorkankizhangu lying in the tray. put them into a 
bowl, washed them twice and pressure cooked it. voila! i could peel it 
so easily like our boiled potato without staining my hands!  enjoyed a 
nice mezhukupiratti  (mezhukuvarati) for lunch.
[Now sadly remembering
 the days when ladies and girls of a household used to peel them 
laboriously by rubbing them on rough stone surface......staining our 
hands.... ]
Here is a nice roast recipe (
mezhukupiratti) using this yummy vegetable.