First wash and soak the Chana Dal and raw rice in sufficient water for about 5 hrs.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/mav-1.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/mav-2.jpg" alt="vadai" width="48%" />
Add Green Chilli, Fennel to a mixie and grind it coarsely. Just a few pulses is enough.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-3.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-4.jpg" alt="vadai" width="48%" />
Drain the water from the dal. Reserve 1 Tbsp of the dal and add the remaining dal to the mixie/blender and grind it to a very coarse paste.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-5.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-6.jpg" alt="vadai" width="48%" />
Add the chopped banana flower to the blender and give a few pulses to get it roughly mixed with the dal.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-7.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-8.jpg" alt="vadai" width="48%" />
Transfer the ground mixture to a mixing bowl. Add the reserved 1 Tbsp dal, onion, curry leaves, salt and asafoetida. Mix well until combined.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-9.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-10.jpg" alt="vadai" width="48%" />
Heat oil in a kadai. Take a small portion of the dough, roll it into a ball and flatten it using your palms.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-11.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-12.jpg" alt="vadai" width="48%" />
Fry them in oil at medium heat until they are nicely golden brown. Drain the vadai on a paper napkin.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-15.jpg" alt="vadai" width="48%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vavada-16.jpg" alt="vadai" width="48%" />
Enjoy hot.
<br><br><img src="//revisfoodography.com/wp-content/uploads/2017/03/vazhaipoo-vadai-1.jpg" alt="vazhaipoo vadai" width="100%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vazhaipoo-vadai-2.jpg" alt="vazhaipoo vadai" width="100%" /> <img src="//revisfoodography.com/wp-content/uploads/2017/03/vazhaipoo-vadai-3.jpg" alt="vazhaipoo vadai" width="100%" />