Pesto Trapanese (Raw Tomato-Basil Pesto)

Other pasta sauces are as good, but none is better. This creamy pesto from the city of Trapani in westernmost Sicily is partly like the famous pesto from Genoa, but the Sicilian one contains no cheese, adds tomatoes, and uses almonds in place of walnuts or pine nuts. Both kinds are served raw over hot pasta, which in Trapani, ideally, is homemade busiat…