Shiroi Koibito is a legendary Japanese confectionery brand based in Sapporo, on the northern island of Hokkaido, best known for its signature cookie of the same name – a delicate butter langue de chat sandwich filled with smooth white chocolate. The name, meaning “White Lover,” evokes a sense of purity, warmth, and nostalgia, and the cookie itself has become one of Japan’s most iconic and beloved edible souvenirs.