Tonnato is a tuna sauce that originated in Italy. In Italy, it is tuna, but here we arranged it by combining Makurazaki's specialty bonito flakes with seasonal vegetables from Nansatsu. It is a dish sauce with a strong umami flavor that combines pickles made from organic vegetables from Mr./Ms., a farmer in Nansatsu, and bonito flakes, a specialty of Makurazaki, which has a history of about 300 years since the introduction of the manufacturing method. The vinegar is made from vinegar that makes use of the umami of dried tomatoes from Iio Brewery, which makes rice without pesticides, and adds bonito flakes, which are a specialty of Makurazaki, and herbs called Yoshikan from the oldest herb garden in Japan, Kaimon Sanroku Fragrance Garden, to create a sour and soft tonnato with a focus on umami and aroma. Mix it with mayonnaise in a 1:1 ratio to create a versatile sauce that goes well with toast, meat, fish, and short pasta. Contrary to its modest appearance, it is the No. 1 popular product of the Wildcat Bottling Institute.