This is one of my favourite dish. I like curd vada more than sambar vada or any vegetable vada. Whenever vadas are made at home, there will be fight between me and my brother as I want curd vada and my brother wants just vadas, but both of us get what we want. She divides the batter for vadas and curd vadas. With this curd vada you can make it as a chat also. Just drizzle some sweet chutney (tamarind chutney), chopped onion, grated carrot, few sev, green chutney (mint chutney). This south Indian curd vada is different from the north Indian curd vada which we call dahi bhalle, which is served as a chat. In dahi bhalle, the curd will be little sweet and it is drizzled with sweet chutney, chilli powder, roasted cumin powder on top of it. But I always have it just plain south Indian curd vada. My mother soak the vadas directly to the tadka curd, but my aunty first soak the vadas in plain water or butter milk (thin curd mixture, little curd but more water) and then added to the tadka curd. Both has different taste, you can do as per your taste and need. The method which I adopt needs more curd as the vadas will absorb all the liquid.
Curd tadka
Curd tadka (seasoned curd)