Thattai is a crispy rice chakkli prepared by mixing rice flour, fried gram powder, urad dal flour and deep-fried in oil.
1) Add ready-made urad dal flour if you have in store or make it and store it in the refrigerator. Make sure to do fine powder from roasted urad dal.
2) Also, add only the mentioned quantity of fried gram powder and butter. Excess of them both makes the Thattu vadais brittle.
3) Moreover, peanuts are purely optional and you can skip them if you don't prefer.
4) Finally, always maintain the perfect oil temperature by adjusting manually to get crispy thattai.