Delia Smith has done many series of cooking programmes; "How To Cook" addresses your question directly. It starts with the very most fundamental basics: how to boil an egg.

I'd be surprised if these programmes can't be found on e.g. Youtube.

I strongly suspect there is a book or two in print with the same title.

Delia's recipes work. She's not a purist; she does shortcuts (but always from-scratch - no tinned Cambell's Soup).

If "How To Cook" is too basic for you, her website is full of well-explained recipes for all kinds of standards.

[Aside: One of the things that pisses me off about online recipes is the fifteen paragraphs of gush that seems to be required if you want to be a paid food "influencer"; Delia doesn't do that.]