Joplin; it‘s actually more of a note-taking app with TODO functionality. If you want to sync across devices (there‘s a desktop app as well) you can select selfhosted options. Joplin is FOSS and doesn‘t collect data.

You‘re both right! Thanks for pointing that out, edited post for correctness.

たしかに！たこ焼きもゆっくり食べる。

The result looks impressive for a first time! I find it hard to get the right balance of tastes.

I think my favourite one is in a little restaurant in Gion, Kyōto, where it is prepared in front of me on the teppan (鉄板) by the chef before being enjoyed piece by piece. You really eat it with all your senses, I love it.