I use emacs's org-mode for most recipes and notes, some written out, some links to web pages.

As well as that, I have a piece of paper stuck inside a cupboard door with ingredient ratios for things such as pastry, béchamel, vinaigrette, etc.

I write my favorites down, but most things I do by memory and feel.
I like experimenting a bit and when I use recipes I tend to follow them very strickly.

I started keeping a notebook with notes when making bread consumed my life. I have the recipe and then notes and future revisions written down. I’ve tried to digitize recipes but it’s too inconvenient and I always forget. So I just started a notebook for recipes and do the same thing and it’s worked out nice.

If I was smart, maybe a kitchen iPad or something would be better. But also my entire life is digital. It’s kinda nice to keep it out of the kitchen.

They're all saved as print to PDFs in my Google drive recipes folder

I use an app called Cookmate. It's like Paprika but free/and based. The ads are really minimal, so it doesn't really affect the utility of the app. It has a downloading function as well. Super handy.

I self-host Tandoor and would recommend it to anyone able to set up an instance.

I generally don't keep recipes anywhere at all. I'll follow a recipe for a new dish, but after making it a few times I just do it from memory.

This usually works out fine. Except for the time I forgot a Spanish rice recipe called for 1.5 cups of rice and was instead using 1 cup and couldn't figure out why my rice was always so mushy. Or when I forgot that an Indian dish called for fresh ginger (this is alright, but I swear it was better the first few times I made it!)

I use copy me that. I used it for my groceries lists as well.

I made a cake calendar web site which I use with OnionShare.

I keep other recipes as text files on my phone.

I started organizing mine with ObsidianMD and it's absolutely great. Add and edit on my computer and then read them from my phone while cooking.

i love paprika and use it constantly, but I wish the devs were responsive at all.

i previously self-hosted my recipes as plain text on my website and organized/maintained everything manually. I still store them there as such, because it's easier to share with friends this way. But somewhere along the way I switched to markdown, and have a shceduled script that converts the markdown to html files for that directory. it's easy and slick.

but now, my main recipe storage is in paprika - on android - and i paid for it and love it. it's super easy to import recipes from the web, add notes, edit recipes, and maintain a shopping list. it's important to note that I've searched for and have not found a FOSS alternative with such a robust feature set as Paprika, with the excetion of nextcloud (and I'm not interested in that).

i just have two improvements that the paprika team has never even responded to for months: better on-screen formatting (like automatically bulleted lists for ingredients and automatically numbered lists for the directions), and better export options, like something other than plain text (poorly formatted) or pdf. export to html or markdown would save me extra work.

the mobile app is definitely worth the $5 paid, but I have no opinion on the cost of the desktop app.