Marcella Hazan's Amazing 4-Ingredient Tomato Sauce
Ingredients
1 28 oz. can peeled plum tomatoes no salt or herbs added
5 tablespoons unsalted butter
1 small white onion peeled and cut in half
Kosher salt
Shaved Parmesan cheese
Freshly ground black pepper
Directions
Put a 3-quart saucepan over medium-high heat. Add the tomatoes, butter, onion halves, and a pinch of salt.
Bring to a simmer then lower the heat.
Crush the tomatoes lightly with the back of a spoon as they cook, and stir occasionally.
Simmer very gently for 45 minutes, or until droplets of fat appear on the surface of the tomatoes.
Remove and discard the onion.