Siddu is the most famous pahadi dish among the natives of himachal. Siddu is a regularly consumed dish which is being followed from ages and ages. Healthy traditional dish. There are numerous variations in preparing the filling for siddu. Siddu is normally a steamed wheat which includes a filling within. People do use peas filling, potato filling, urad dal filling, rajma filling, walnut peanut filling, etc. I have used walnut peanut filling in my siddu.