For a richer flavor, use chicken broth instead of water. If you don't have a food processor or blender, finely mince the onion, jalapeños, and garlic, and mix them with the tomato paste, water, and salt. Adjust the amount of jalapeño to your preferred spice level. Remove the seeds and membranes for a milder flavor. For a vibrant red color, use a good quality tomato paste. Rinsing the rice before cooking removes excess starch, resulting in fluffier rice.