There are all kinds of pesto sauces in Italy, but this particular one is inspired by Sicilian tomato pesto – also known as “Pesto alla Trapanese”. What makes it different from Pesto Alla Genovese is that it uses almonds as opposed to pine nuts, and gets finished with fresh tomatoes, which are bountiful in the south. In Sicily, they use the Pachino tomato – which are small, sweet, and similar to cherry tomatoes. The addition of tomatoes gives the entire sauce a much lighter, brighter flavor.