When we say Vathakuzhambu we in our family end up voting for either shallots vathakuzhambu or Poondu Vathakuzhambu. But my personal favourite is the manathakkali vathakuzhambu made using dried manathakkali vathal. Mom used to make it with fresh green manathakkali too. But this one gets thicker by the day and tastes too good in the night or the next day. Though the best combination with this is Keerai koottu or Keerai masiyal, I also prefer it with potato kara curry.