- Take a pan and add 2tbsp of oil, mustard, cumin,chopped onion then saute well Then add 1 cup chopped tomato in it and cook for another 5 minutes Then add turmeric, salt and pour 4 cups of water and let it come to boil then add 2 cups of washed rice then let it cook for 15-20 minutes.and turn off the stove and garnish with coriander and serve hot.