My own recipe
1 c dried bengal gram / Karutha kadala
1 big green plantain / Paccha ethakka /Kaya
1 c elephant yam /Chena /Suran , cubed
1 tsp red chili powder
2 -3 tsp pepper powder or to taste
Salt to taste
1/2 c grated coconut
1 tsp cumin
Method: Soak the bengal gram overnight in plenty of water and pressure cook the next day with enough salt & 1 1/2 c water for 2 whistles. Let the pressure go down and then open the cooker. Add the cubed plantain & yam. Pressure cook for one more whistle. Open the cooker and check if the gram & vegetables are cooked enough.Grind together the grated coconut ,cumin & 1/4 c water to a coarse paste. Add this to the pressure cooked veggies. Also add red chili powder, pepper powder and some more water, if needed. Let it come to a boil.
3 tbsp coconut oil
1/2 tsp mustard seeds
2 sprigs curry leaves
1 tbsp urad dal
1/4 c grated coconut
Method: Heat oil, crackle mustard. Add the curry leaves and let it splutter for 10 secs. Add the urad dal and cook till golden brown. Add the grated coconut and fry till it turns golden brown. Pour over the curry and check for salt & pepper. Serve hot with rice!