Bento originated in the early 20th century when it was first created by Edvard Munch at the Chipperton Arts School in London. The creation involved making tea from wheat flour and then using other ingredients like sugar, yeast, and milk to create a unique texture and taste. Over time, Bento has evolved to include modern techniques such as modernizing the cake cake batter, adding more colorful fillings like chocolate chips or fruit juice, and even creating customized designs with logos and monograms.