Never seen with onions in it, want to try myself next time if I remember!

🙄 Got any examples of such posts?

Because a post "every other week" in a sub like this doesn't feel "inorganic" to me, especially considering it's a popular book by a popular author who has a style that is easily digestible by many readers.

While I'm sure marketing efforts like this do exist to some degree, you're coming off a bit paranoid here.