醤油・砂糖・塩などで味付けしたひきわり納豆にみそ漬けの卵黄をちょい足し。 納豆系おむすびのなかで人気高いおむすびです。

A bit of miso-pickled egg yolk is added to the ground natto seasoned with soy sauce, sugar, and salt. There's no way natto and eggs don't go together. This is a popular rice ball in the lineup of natto-based rice balls.