noun
straw-wrapped natto
A traditional preparation of natto (fermented soybeans) wrapped in rice straw, known for its distinct aroma and flavor. Primarily a food term.
昔ながらのわら納豆は、藁の香りが移って風味が良い。
Traditional straw-wrapped natto has a good flavor from the aroma of the straw.
納豆 is the general term for fermented soybeans, while わら納豆 specifically refers to the straw-wrapped variety.
Compound of 藁 (わら, 'straw') and 納豆 (なっとう, 'natto'). The name directly describes the traditional method of wrapping natto in rice straw for fermentation.