Have you ever had Takoyaki?
You have to try them when you ever travel to Japan.
It is not difficult to cook at home if you have Takoyaki plate.
I found one on Amazon.
https://www.amazon.com/IRIS-OHYAMA-takoyaki-plate-ITY-20WA-R/dp/B00VW8NUOW/ref=asc_df_B00VW8NUOW