"KitchenOwl is a self-hosted grocery list and recipe manager. The backend is made with Flask and the frontend with Flutter. Easily add items to your shopping list before you go shopping. You can also create recipes and add items based on what you want to cook."
Why I like it:

• It has volumes integrated in to the instructions so you don't have to keep finding and losing your place.
• It can scale ingredients volumes as you raise or lower the number of servings.
• It's has a cook mode that separates the steps onto different pages.
• You can add ingredient from a recipe to a checklist to check off as you see what you have and as you buy it.
• It has a web-app, and available on Google Play Store, App Store, and F-Droid.
• It syncs with your other devices and you can share with others.

You can find use recipes that others have added or your own. There aren't too many so you will likely want to add your own. There is in import recipe function that works for some sights.

It can be a bit finicky sometimes but I have found it to be helpful.