Traditional Spaghetti all'Amatriciana

By Aldo

4.67 / 5

10min

20min

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1 pound spaghetti
3 tablespoons extra-virgin olive oil divided, or more if needed
1 onion finely chopped
7 ounces pancetta bacon diced
2 cups passata (crushed tomatoes)
1 tablespoon water or more as needed
½ teaspoon white sugar
2 tablespoons grated Parmesan cheese
1 pinch red pepper flakes or to taste
salt and freshly ground black pepper to taste