No, but you can if you like to show where you got your inspiration.
When I say no it has to do with it's legality. Ingredients are not copyrightable but if the headings and instructions are exact then you should provide a link.
Basically if completely different ingredients are used and methods are different and is therefore different from that recipe, then you don't have to provide a link.
Of course if a person is a food blogger for example and does this often it's just good ethics and practice that you show were that inspiration came from. It's just a matter of time if this is the kind of blogging where a person never sites sources will generally get caught out and is identified, which in that context can effect that bloggers reputation and of course their subscribers.
As an example; Claudine Gay, the former President of Harvard University, resigned in January 2024 following allegations of plagiarism. This is on a different level of course but it's just not something a person wants attached to their resume.
I've seen this in many forums where someone has a recipe that when you check is from a specific source and I think the average person really doesn't do it knowingly but it's often done, I've never said anything because I really don't care but if your the publisher of that property it might and if it's also somewhere where that person might be generating an income, say a magazine, recipe website etc.
