Warm the oil in a pan and soften the onion slcies in it. 3. Meanwhile, combine the grated onion, chili, coriander and thyme in a bowl with the tomatoes and add this to the cooked onion slices. Contniue to cook the mixture gently for 10-15 minutes, stirring constantly. 4. After this put in the cooked black eyed peas, mash them a little and then add sugar and salt. Mix everything well and cook for 5-10 minutes to heat all the ingredients before serving with salad and rice or fufu (cassava mash).