Heat coconut oil in a pan.
Add mustard seeds and let them crackle.
Add chopped shallots. Stir and saute for a minute.
Then add ginger, chopped green chilies, curry leaves and saute till the shallots turn translucent or a light brown.
Then add red chili powder, coriander powder, black pepper powder and the ground kerala garam masala.If you already have kerala garam masala, then just add 1 teaspoon of it.Note that 1 teaspoon of red chili powder, makes this curry spicy. So reduce to ½ teaspoon for a less spicy curry.
Stir the ground spices very well and saute for a minute on low heat.
Then add the ground coconut paste.
Stir and mix very well.
Saute for 4 to 5 minutes on a low heat.
Then add the cooked black chickpeas or kadala. Stir very well.
Then add 1 to 1.25 cups water or according to the consistency you prefer. Again stir and mix very well.
Season with the required amount of salt and stir kadala curry again.
Let the curry come to a boil on medium heat and the gravy reduces a bit. The flavors and chickpeas should also be well blended.When the curry is done and cooked well, you will see some oil specks on the top layer of the curry.
Serve Kadala Curry hot with puttu or appams or steamed rice. While serving, you can garnish with some chopped coriander leaves if you like.