It's worse than you think, many recipe sites do not taste test their stuff at all, and often have very stupid instructions.

That being said, an LLM can give creative ideas, mix and match components, but you should not trust the details at all.

Case in point, when "minced meat" and "mincemeat" were mixed up: https://metro.co.uk/2019/12/09/american-website-includes-act...