noun
rice flour dough; shinko mochi
A traditional Japanese sweet made from rice flour dough, often shaped and colored. The term can refer to the dough itself or the finished confection.
祖母が糝粉餅を作ってくれた。
My grandmother made shinko mochi for me.
糝粉餅は上新粉から作られることが多い。
Shinko mochi is often made from jōshinko (high-quality rice flour).
上新粉 is the rice flour commonly used to make 糝粉餅, giving it a smooth, slightly chewy texture.
The word combines 糝粉 (shinko, rice flour) and 餅 (mochi, rice cake). The exact historical origin is uncertain, but it is a traditional Japanese sweet.