noun
cayenne pepper powder; ground red pepper
A common Japanese spice blend of ground red chili pepper, often used as a table condiment. Not to be confused with 七味唐辛子 (shichimi tōgarashi), which includes additional spices.
うどんに一味唐辛子をかけると、ピリッとして美味しい。
Sprinkling cayenne pepper powder on udon gives it a nice spicy kick.
七味唐辛子 is a seven-spice blend that includes red pepper plus other ingredients like sansho and sesame, while 一味唐辛子 is pure ground red pepper.
From 一味 (ichimi, 'one flavor') + 唐辛子 (tōgarashi, 'chili pepper'), referring to a pure chili powder without added spices.