Marcella Hazan's Marinara

Directions

1. Place the canned San Marzano tomatoes in a saucepan. Mash the tomatoes with your hand, or a spoon.

2. Add butter, onion, and salt/fish sauce, and cook uncovered at a slow, but steady simmer for 30-45 minutes, or until thicken to your liking.

3. Stir from time to time, mashing any of the tomato pieces with the back of a wooden spoon.

4. Taste and correct salt or add fish sauce.

5. You may remove the onion, as Hazan recommends, or process it and add to the sauce.