Anpan

is a Japanese sweet bread filled with red bean paste. Anpan can also be prepared with other fillings, including white beans, green beans, sesame and chestnut.
Anpan is thought to be an Japanese original bread. It is a mixture of bread and "あん" a Japanese traditional sweet made from beans. Anpan appeared for the first time at a bakery in Ginza, Tokyo in 1874. The emperor also tried it in 1875. This news about the emperor spread quickly throughout Japan, and it became popular among Japanese people.