Great game! Interesting idea and definitely can be expanded upon. Here is some improvement that I can think off the top of my head:
- Maybe a recipe book that you can go inside and fill however you want with your inventory, this can be fun and will probably go well with the theme you are going with
- Other methods or tools that affect food rather than just putting them in a cauldron, this can open much more possibilities, also you can make these methods related to witches as well
- New books to discover along with gameplay possibly with other things than just ingredients, maybe new tools to pick up on books and stuff
- Also some little particle effects and stuff can help making game more cozy
Hope these ideas help. I would love to see an improved game with this cozy art and a very nice theme :)