Name: Sugo al Pomodoro
Prep time: 5 min
Cook time: 45 min
Total time: 50 min
Yield: 4 servings (about 2 cups sauce)
Cuisine: Italian, Neapolitan
Ingredients: 1 can (28 ounces) whole peeled San Marzano tomatoes; 5 tablespoons unsalted butter; 1 medium yellow onion, peeled and halved; 1 teaspoon kosher salt, or to taste

Question 1

Can I use regular canned tomatoes instead of San Marzano?

Accepted Answer

Yes, but San Marzano tomatoes have lower acidity and sweeter flesh that makes this sauce exceptional. If substituting, use whole peeled plum tomatoes and add a pinch of sugar to balance acidity. Avoid crushed or diced tomatoes—they contain calcium chloride that affects texture.

Question 2

Why does this tomato sauce use butter instead of olive oil?

Accepted Answer

Butter creates a velvety, rich sauce that clings to pasta better than olive oil. The milk solids in unsalted butter round out the tomatoes' acidity without adding competing flavors. This technique defines sugo al pomodoro and distinguishes it from oil-based marinara sauces.

Question 3

Why is the onion left whole and then removed from the sauce?

Accepted Answer

The halved yellow onion infuses subtle sweetness and depth during simmering without adding onion pieces to the final sauce. This technique, popularized by Marcella Hazan, gives you clean tomato flavor with aromatic complexity. The onion softens completely and can be eaten separately or discarded.

Question 4

How long does homemade sugo al pomodoro keep?

Accepted Answer

Store sugo al pomodoro in an airtight container in the refrigerator for up to 5 days. For longer storage, freeze in portions for up to 3 months. The butter may separate when reheating—stir vigorously over low heat to re-emulsify the sauce before serving.

Question 5

Do I need to crush the whole San Marzano tomatoes?

Accepted Answer

Crush the whole peeled San Marzano tomatoes by hand directly into the pot, or use a wooden spoon to break them apart during cooking. Hand-crushing creates rustic texture with some larger pieces. For smoother sauce, blend briefly with an immersion blender after removing the onion.

Question 6

Can I double this tomato sauce recipe?

Accepted Answer

Yes, sugo al pomodoro scales easily. Double all ingredients including the butter and use two onion halves. Increase simmering time by 10-15 minutes to achieve the same thickness. Use a wider pot so the sauce reduces properly rather than steaming in a tall, narrow vessel.

Culinary Explorer

Sugo al Pomodoro

Ingredients

whole peeled San Marzano tomatoes

unsalted butter

yellow onion

Where cooking meets culture.

Ingredient	Quantity
whole peeled San Marzano tomatoes	1 can (28 ounces)
unsalted butter	5 tablespoons
yellow onionpeeled and halved	1 medium