- In a pot over medium-high heat, soften the garlic in the oil without letting it brown. Add the tomatoes and simmer for 20 minutes or until they begin to burst. With a potato masher, crush the tomatoes until smooth. Cook for 5 more minutes. Set aside.
- Meanwhile, in a large skillet over medium-high heat, brown the pancetta for 5 minutes. Season with pepper. Drain on a plate lined with paper towel.
- In a pot of salted boiling water, cook the pasta until very al dente. Reserve 1 cup (250 ml) of the cooking water. Drain the pasta. Add the pasta and reserved cooking water to the tomato sauce. Cook for 5 minutes over medium heat, stirring to coat the pasta in the sauce. Add the cheese and stir until melted. Top with the pancetta.
Guanciale is a cured (not smoked) meat product made from pork jowl or cheek.