Microwave plantain and yam for 12 minutes. You can follow the same procedure as I mentioned above. If you are using a pressure cooker, then 1 whistle is enough.
Grind the coconut and pepper together.
Heat the kadai and add coconut oil.
Once the oil is hot, add mustard seeds, hing and curry leaves.
As they start to splutter, add the boiled veggies, salt, and turmeric powder.
Mix them well and now add the ground masala and also the water.