Shallot (Onion) Killu Vathal / Vadagam is a traditional South Indian sun-dried fryum prepared using rice flour, shallots (small onions), and spices. The dough is pinched by hand (“killu”) into small pieces and dried under the sun, giving it an authentic homemade taste. When fried, these vathals turn light, crispy, and flavorful, making them the perfect side dish for sambar rice, rasam rice, or curd rice.