This classic tomato sauce suits any pasta, including our Pappardelle with Lobster, Spicy Tomato Sauce, and Mint.
Heat oil in a large skillet over medium heat until hot but not smoking. Add onion and garlic; cook, stirring, until onion is softened, about 5 minutes. Add tomatoes, basil, chile, and salt. Reduce heat to medium-low; cook, stirring occasionally, until thickened, about 30 minutes.