An easy and quick homemade marinara sauce, perfect for topping spaghetti and chicken parmesan.
Add olive oil to a large saucepan over medium heat. Add the onion and saute 2-3 minutes, add the garlic and sauté 1 minute more.
Add in the tomatoes, sugar, pepper and red pepper flakes and stir to combine. Allow to rapidly simmer for 15 minutes, uncovered, stirring often.
Makes about 2 1/2 cups.