The story
Borrowed from Japanese 振(ふ)り掛(か)け (furikake), an nominalized form of 振(ふ)り掛(か)ける (furikakeru, “to sprinkle on top”).
Etymology from Wiktionary, CC BY-SA 4.0.
furikake
Today it means: A dry Japanese condiment for rice; typically a mixture of dried fish, sesame seeds, chopped seaweed, sugar, salt, and monosodium glutamate. Full definition →