Not to undermine everybody else's feedback, because I 100% agree with what they said, but I started with the tomato bisque lessons, and the contents were much better.
I found it genuinely interesting, and as a beginner home cook, I was learning things, such as stuff about acidity, different types of tomatoes etc.
However, I still found it dragged out a bit, with too many random unhelpful questions (e.g. which of these is a tomato?).
The app is very well designed in terms of the UX, and the only time I struggled was in getting back to the home page after a lesson. Feels like a third option at the bottom, or replacing the X icon with a home icon would be more intuitive.
My last suggestion is a big one, as it changes the app a bit, but why not start with the recipe? Others have mentioned the lack of a hook, and it gives something for the questions to refer to.
Good luck, I sincerely hope you're successful, there's an odd shortage of cooking apps.
When I was at uni, we played a lot of drinking games, and sometimes (when we didn't have cards or anything) played a mobile one called Picolo. It's just like if you took the rounds out of games like ring of fire and truth/dare and turned it into an app. Only problem was it had some super buzzkill questions, like "What's worse, slavery or war?", and I thought I could do a better job.
Very simple app really, had a list of questions to run through, stuck peoples names into the question etc, but my issue came with the Android store. I called it "Beercules: Drinking game", but even after months (and a rating between 4 and 5 stars) you couldn't find it in the store unless you searched that full name. Searching Beercules or Drinking game didn't even put it at the bottom of the list, it just didn't exist. Oh, and then they updated the ToS and took the game down due to me not having a privacy policy, and gave no guidance on what that even is, never mind how to complete it, so i just gave up on it.
I never expected it to be super successful, but I'd hoped it would have been given a chance.
My last suggestion is a big one, as it changes the app a bit, but why not start with the recipe? Others have mentioned the lack of a hook, and it gives something for the questions to refer to.
Good luck, I sincerely hope you're successful, there's an odd shortage of cooking apps.