- 1/4 cup vegetable oil
- 1 large onion, chopped
- 1 (28 ounce) can crushed tomatoes
- 2 cloves garlic, crushed
- 1 tablespoon dried basil
- salt and freshly ground black pepper to taste
- Heat oil in a large saucepan over medium-high heat. Cook and stir onion in the hot oil until a light golden brown, about 10 minutes.
- Stir in crushed tomatoes, garlic, and basil and bring mixture to a boil. Season with salt and pepper.
- Reduce heat to low and let sauce simmer, stirring occasionally, and skimming off any oil that accumulates on top. Cook until sauce is thick and reduced, about 1 1/2 hours.