First, wash Aval

Add hot water and soak till Aval turns soft press

Transfer to a colander; press and drain the water completely

Knead well and transfer to a wide bowl

Furthermore,  add rice flour, besan flour, salt, asafoetida, ginger, onion, cabbage, and curd to a wide vessel; mix well and knead till vadai dough comes together

Grease hands with a little oil

pinch a portion of the dough

Roll and flatten. Make a hole in the center

Heat oil and fry vadai in batches

Avoid flipping immediately. Give time to fry

Flip and fry both sides golden brown

Drain oil in the oil filter and serve hot vadai