There are some foods foreigners adore, while other cringe. We just dream of konowata a high-end middle range delicacy when compared with the testicles of fugu. Either way it is one of those Japanese delicacies you shouldn’t miss with Japanese sake, and it can be found in a broth, or on rice freshly served after salting, or simply dried and grilled (seen below)

Konowata Re-hydrated: https://mesubim.com/2016/01/28/dried-konawata-matsukawa-video/
Konowata Fresh: https://mesubim.com/2015/02/07/konawata/