@HoneyPopper it's mostly the irl cooking show trend bleeding into manga, then into isekai genre
also influence by manga editors: "mangaka-san, cooking series sell well, and isekai is the new hotness, so why don't you do a combination of these 2?"
First chapter is just: Oh wow u so amazing wow amazing like really good
together with the cliché 'i have been abandoned as a child because ..... and I was from a noble family)