Porivilangai is a South Indian laddu made using pan-roasted rice & palm jaggery. Our grandmother never missed to prepare these traditional laddus every year for the Deepavali festival that falls in October or November. My aunts used to store those delightful laddus for about 6 months till our visit during summer. In those days these flavorful porivilangai were made into hard orange-sized balls but now I have made small soft laddus that can be stored only for few days. You can also check out the recipe for a similar laddu called Neivilangai made using lentil flour.