Step Two Put the oil in a large frying pan and set over medium–high heat. When hot, add the cumin seeds. Let the seeds sizzle for a few seconds. Now add the potatoes. Turn the heat down to medium. Brown the potatoes lightly on all sides. Turn the heat to low and add ¼ teaspoon salt and the ground cumin, garam masala and chilli powder. Cook, stirring, for a minute. Add the green coriander just before serving and toss to mix.