Bucatini All'Amatriciana

Ingredients:
extra virgin olive oil
8 ounces guanciale, cut in 1/4-inch strips (substitute pancetta)
2 large onions, cut in 1/2-inch dice
1/2 to 1 teaspoon crushed red pepper flakes
kosher salt
2 (28-ounce) cans San Marzano tomatoes, passed through the food mill
1 pound bucatini or perciatelli
1/2 cup grated parmigiano-reggiano, plus extra for garnish

Preparing the bucatini all'amatriciana:
Coat a large saucepan with olive oil. Add the guanciale and saute over low heat. Cook until it is brown and crispy and has rendered a lot of fat. Remove and reserve 1/3 of the guanciale for garnish.

Bring the pan to a medium heat and add the onions and crushed red pepper. Season generously with salt, to taste. Cook the onions until they are translucent, starting to turn golden and are aromatic. Add the tomatoes and bring to a boil, then reduce the heat and simmer the sauce for about 1 hour, tasting periodically. Adjust the salt, as needed.

Bring a large pot of well salted water to a boil over high heat. Add the pasta and cook for 1 minute less than the instructions on the package. Remove 3 or 4 ladles' full of the sauce from the pot to a separate bowl (you can always add it back in, but it's harder to take out once the pasta is in the pan).

Drain the pasta from the water and add to the pot of sauce. Stir to coat with the sauce. Add more sauce, if necessary. Add in the cheese and drizzle with olive oil. Toss to coat and serve garnished with cheese and the reserved guanciale.

Serves 4 to 6