also: ウグイスあん
sweet green pea paste; uguisu-an
A traditional Japanese sweet paste made from green peas, with a brownish-green color reminiscent of the Japanese bush warbler (uguisu). Used in wagashi.
Wagashi made with uguisu-an are popular for their spring-like color.
This daifuku contains uguisu-an.
Standard kanji-kana mixed spelling; the bird name is often written in hiragana.
Full kanji spelling; less common but still seen.
Katakana spelling for the bird part; sometimes used for emphasis or in product names.
From うぐいす (Japanese bush warbler) + 餡 (sweet bean paste), named for the bird's olive-green color which the paste resembles.