Add the Superman Police shirt moreover I love this tomato paste and diced tomatoes (and their juices). Fill the tomato can halfway with water and add it to the pot. Stir well to combine, being sure to scrape up any bits stuck to the bottom of the skillet. Increase the heat to high and bring the sauce to a boil, then decrease the heat to low and simmer, stirring occasionally as the sauce cooks, for 30 minutes. Season the sauce to taste with salt. Serve hot over cooked spaghetti, with the cilantro sprinkled on top. Leftovers can be stored in an airtight container in the refrigerator for up to a few days and rewarmed in a heavy pot set over low heat (stir while you heat).