Kibi dango (millet dumpling)
Kibi dango (黍団子, きびだんご; "millet dumpling") is a Japanese dumpling made from the meal or flour of the kibi (proso millet) grain. The treat was used by folktale-hero Momotarō (the Peach Boy) to recruit his three beastly retainers (the dog, the monkey and the pheasant), in the commonly known version of the tale.
Source: Wikipedia — Kibi dango (millet dumpling) (CC BY-SA 4.0)