Add all the above-mentioned ingredients to a blender jar or food processor.
Grind to a smooth paste with ¼ cup water.
Based on your preference, can be made into a thick coarse paste or a smooth water paste.
Recipe by Cooking with Thas - Smart Cooking, Smart Living at https://thasneen.com/cooking/medu-vada-easy-tips-to-make-crispy-medu-vada-gluten-free-indian-snack-traditional-south-indian-fried-snack-uzhunnu-vada-or-medu-vada/