So first off, I’d like to thank Walnuts4Gold from reddit.com for helping me figure out the name of this stuff. The only thing I had to go on was the phone number on the bottom. From that I figured out with a little research that Sanyo Foods makes these noodles. Then Walnuts4Food sent me a link with some other varieties including this one. This one is the Mentaiko variety. What’s mentaiko? Wikipedia states it is… Mentaiko (明太子?) is the marinated roe of pollock, and is a common ingredient in Japanese cuisine. Mentaiko originated from myeongran jeot (명란젓) of Korean cuisine and was introduced to Japan after the Russo-Japanese War. Kawahara Toshio, a Busan-born Japanese, adapted Korean mentaiko to Japanese tastes in Fukuoka in the 1950s. The name is derived from the Korean word for Alaska pollock (mentai, 명태 : myeongtae in Korean) and the Japanese word for “child” (子, ko?). The typical seasoning and flavor is slightly different in Japan. Mentaiko is made in a variety of flavors and colors and is available at airports and main train stations. It is usually eaten with onigiri, but is also enjoyed by itself with sake. A common variety is spicy mentaiko (辛子明太子, karashi mentaiko?). It is a product of the Hakataward of Fukuoka City.
It makes perfect sense that this must be what it is….
Click image to enlarge. Pretty easily followed instructions…