The mellow flavor is made with domestic onions and soy sauce specially ordered from a brewery in Kyushu. This classic dressing has been made using the same method since it was first made at the restaurant. Product contents: Edible vegetable oil, onions, brewed vinegar, soy sauce, sugar, salt, seasonings, olives, regebimento, spices, sweeteners,. Instructions: Store away from direct sunlight and in a cool, dry place.