The primary ingredient found in traditional pesto is basil. This aromatic herb lends pesto its distinctive flavor and vibrant green color. In addition to basil, traditional pesto recipes typically include pine nuts, garlic, Parmesan cheese, olive oil, and salt, which are all combined to create a smooth, flavorful sauce. Originating from the Liguria region in Italy, traditional pesto is commonly used as a condiment for pasta, but it can also enhance various dishes such as sandwiches, salads, and marinades. Its fresh, herbaceous taste has made it a popular addition to cuisines worldwide.