Ingredients:Black gram split / urid dal / ulunthu paruppu - 1 cup
Finely chopped onion - 1/2 cup
Finely chopped or grated crispier vegetables like carrots, beans, cabbage, capsicum - 1 1/2 cup
Finely chopped green chilies - 1 tbsp
Finely chopped ginger - 1 tbsp
Curry leaves (optional) - 2 sprigs finely chopped
Salt to taste
Oil to deep fry
Preparation:Soak black gram splits for one hour and grind fluffy without water. If needed just sprinkle some water and make a thick batter. As we add vegetables the batter must be thicker than normal vadai batter.
Mix all the other ingredients except oil and mix well.
I grated carrots and chopped other veggies.
Now heat oil in a pan to deep fry vadai. Just wet the fingers of one hand and take a lemon sized batter. Keep the batter on the wet palm of other hand and make a hole in the middle with finger. Deep fry in oil and serve hot with sambhar or chutney.
For normal medhu vadai just skip the vegetables and follow the same procedure. But the batter must be in consistency that when a small amount in floated on water it must not spread and it must not sink. It just floats as whole.
For mixer grinder method refer here.