Updated Dec 10, 2018Chatelaine
- HEAT a large pot over medium. Add oil, then onion. Cook until soft, about 4 min. Add tomatoes and salt. Boil, then reduce heat to medium-low. Simmer, stirring occasionally, until saucy, 40 to 45 min.
- STIR in parmesan. Season with fresh pepper. Makes about 5 cups of sauce.