Spaghetti Aglio Olio E Peperoncino (Garlic, Oil & Peppers)

This recipe is from Pasta Cooking by Jeni Wright, c. 2002. The cook's tips (from the book) are as follows: 1) Since the oil is such an important ingredient here, only use the very best cold-pressed extra virgin olive oil, 2) Don't use salt in the oil and garlic mixture because it will not dissolve sufficiently. This is why plenty of salt is recommended for cooking the pasta.