Neat concept! Unfortunately I can’t seem to figure out how to put potions from the cauldron into a vial. I did it once by accident for the healing potions, but after that I couldn’t get it to work again. I also can’t really read the text on the recipes, or continue the dialogue on the brewing screen (at least, it looks as if there’s more to it).
I really like the way it’s presented though, and I think there’s a lot of potential for interesting and strategic gameplay here. Good effort, and I hope you continue working on it!