One of the simplest and most satisfying ways to eat pasta is to toss it with the best extra-virgin olive oil or sweet butter and sprinkle it with freshly grated Parmesan cheese. Butter is the basis for the famous (or nowadays perhaps infamous) fettuccine Alfredo, which is simply cooked fettuccine tossed with triple the amount of butter normally served with buttered pasta, plus reduced heavy cream, cheese, and other seasonings.