My DH is like this about everything.
In his case it’s largely because he’s autistic, and will only willingly do something if it was totally his idea in the first place, and if he has researched the shit out of it and had several practice runs to hone his technique and optimise the process to its fullest (by which point he’s solved the problem of how to do it and no longer has any interest in actually getting it done - and immediately forgets everything he just learned about how to do it, because he can only retain information he finds personally interesting).
If he doesn’t already know everything about exactly how to do something, he becomes totally overwhelmed and really fucking grumpy.
He also can never find anything, because he doesn’t know how to look for things. If something isn’t where he expected it would be - or if he doesn’t know where to expect to an object of its type to be - there is, to his mind, literally no way to find it. So he asks me where it is, because the only way he can imagine I can find things is that I must be memorising the location of every individual object we own on a rolling basis.
This is the only way he imagines people navigate the world - through already knowing things, or memorising them.
He has no mental model for working something out as you go along, or generalizing from experience. To him, every new task is specific, and has a whole unique body of knowledge around it that he must master before he can even think about attempting it.
He struggles to follow basic instructions and recipes because he never finds them specific enough, and just freezes or panics when something is too vague or he’s not 100% certain about what it means. And if he tried then to seek clarity in the internet, he will find several different suggestions and recipes, and he won’t know which one is ‘correct’ and he’ll get really pissed off and anxious.
So he would ask me all these same questions about the pizza because he imagines I must have some comprehensive, detailed, highly specialised knowledge of exactly how to make this particular pizza. If I don’t tell him what to do when he asks, and invite him to find out for himself, he thinks I’m telling him off or sabotaging him or withholding my pizza wisdom just to be an arsehole and a bully.
It is, frankly, a massive problem in our relationship and causes me immense frustration and resentment.