Render the Guanciale: In a large skillet over moderately low heat, cook the guanciale with red pepper flakes (or fresh chile). Let the fat slowly render and the guanciale become lightly golden—about 4-5 minutes. Don’t overcook; it will continue cooking with the onions.
Sauté the Onion: Stir in the chopped onion and cook until softened (about 5-6 minutes). If using garlic, add it and cook for another 30 seconds to 1 minute.
Deglaze with Wine: Pour in the white wine, scraping the pan if needed. Increase the heat slightly and let it simmer until reduced by half (about 2-3 minutes).
Simmer the Sauce: Add the crushed San Marzano tomatoes, season lightly, and bring to a simmer. Reduce the heat and let it cook gently for 25-30 minutes, stirring occasionally, until thickened and full of flavour.
Cook the Pasta & Finish: While the sauce simmers, cook the pasta in a large pot of salted boiling water until al dente. Reserve 1/2 cup (125ml) of pasta water, then drain. Toss the pasta into the sauce over medium-high heat for 1-2 minutes. Off heat, stir in the Pecorino Romano, adding a splash of reserved pasta water as needed to create a silky, smooth sauce that clings to the pasta.
Serve: Plate immediately with extra grated Pecorino and freshly ground black pepper on top. Serve hot and enjoy!
Tips for the Best Amatriciana
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