freeze-dried mochi
A traditional preserved food made by freezing mochi outdoors in winter and then drying it; often rehydrated and eaten in soups or as a snack.
Kōrimochi is a preserved food made using the winter cold.
I put the freeze-dried mochi my grandmother sent me into soup and ate it.
Standard kanji spelling; 凍り (frozen) + 餅 (mochi).
Alternate kanji spelling using 氷 (ice) instead of 凍り; less common but attested.
Compound of 凍り (kōri, 'freezing') + 餅 (mochi, 'rice cake'). The exact historical origin is uncertain, but the food is a traditional preservation method in cold regions.