1Set the Instant Pot to Sauté mode and heat the oil until the pot registers hot. Add the mustard seeds, wait until they crackle, and then add the curry leaves, cumin, coriander, and tomatoes, and cook until the tomatoes have softened, this takes about 3 minutes.
2Stir in the cayenne pepper powder, black-eyed peas, salt, and 1 cup water.