I seem to do this vada often at home during festivals and when I have guests at home! Everybody's favourite! Not very difficult to prepare also! Try it!
For soaking for half an hour:
1 Cup Channa dhal
1/2 cup Thuvar dhal
1/4 cup Urad dhal
Add these while grinding:
5 to 8 Red chillies
3/4 Green Chillies
Few pieces of coconut
Finely chopped vegetables for adding with the batter:
1/2 cup Capsicum
1/2 cup Cabbage (This veg. gives a unique taste)
1/2 cup carrot
Curry leaves and coriander leaves.
2 tsp. of Ghee for flavour and crispness
1/2 tsp. of sugar and enough salt.
I use unrefined groundnut oil for frying.
Grind all the ingredients together coarsely. Add the vegetables, ghee, salt and sugar. Mix well.