Saute’ the After dicing the guanciale (or pancetta) in olive oil on medium heat in a heavy skillet for about 6 - 9 minutes until 'reddish-brown' in color.
Add the onions and saute' until browned for another 4 - 5 minutes.
After these are browned, add the garlic and saute' for another minute or two.
Add freshly chopped tomatoes OR imported Italian San Marzano tomatoesfrom the MUTTI or San Marzano brand. It is entirely up to you to add wine at this point (about 2 Tbsp. of either red or white wine).
Add the rosemary. Then mix in the sage and basil leaves. Then add the Italian parsley (these are my additions and totally optional)
Gently stir the mixture until nicely blended together.
Add one cup of freshly grated Pecorino Romano cheese to the sauce and blend well. Lower the heat down to a simmer.
Bring the sauce to a simmer, reduce the heat to low, and cook at a gentle simmer for about 20 minutes, until the sauce thickened.
In a large/tall pot, fill with water, adding a handful or 2 Tbsp. of slat) and bring to a boil. Add the pasta and separate with a mixing spoon. Cook your pasta for no more than 7 minutes until al dente and strain the water, leaving 1/2 cup of pasta water or so to add to the sauce (if desired).
Using a strainer, carefully remove the pasta into a large, shallow, and wide pasta bowl (see this on the video). You can use any shape of pasta that you prefer, such as spaghetti, but this sauce is traditionally served with bucatini.
Carefully pour the hot Amatriciana sauce onto the hot pasta. Gently and thoroughly stir the sauce with the pasta.
Add the reserved pasta water a little at a time to create the sauce to your desired consistency. Taste. Add more cheese if you like. Make sure you have a lot of grated Pecorino Romanao cheese to take to the table also.
Garnish with fresh basil leaves and sprinkling of Pecorino Romano all over the top of the pasta and sauce.