This very basic recipe is popular throughout Italy. Although any purchased spaghetti will do, this dish becomes special enough for company if you use artisanal pasta, preferably imported from Italy. This makes a wonderful first course. (In every Italian household, there is always a pasta course!) Note: To peel tomatoes, core and cut a small X through the skin on the bottom of tomatoes with a sharp knife. Place them in boiling water for about 30 seconds or just until skins begin to peel back. Quickly remove tomatoes from pan, and plunge them into ice water. Drain and remove skins.