A flavorful and creamy tomato sauce perfect for pasta or as a base for other dishes.
Place the canned tomatoes, butter, and peeled onion in a medium saucepan.
Using a medium saucepan ensures even cooking and prevents the sauce from sticking.
Add a pinch of salt to the saucepan.
Start with a small amount of salt; you can always add more later.
Heat the saucepan over medium heat and bring the mixture to a gentle simmer.
Stir occasionally to prevent the sauce from sticking to the bottom.
Simmer the sauce gently for about 45 minutes, stirring occasionally and mashing the tomatoes with the back of a wooden spoon.
Simmering slowly allows the flavors to meld together beautifully.
Taste the sauce and adjust the seasoning with more salt if needed.
Tasting as you go ensures the perfect balance of flavors.
Remove the onion from the sauce and discard it.
The onion imparts flavor to the sauce without overpowering it.
Serve the sauce warm over your favorite pasta or as a base for other dishes.
Garnish with fresh basil or grated Parmesan for an extra touch.