Amazing how you made this all in just 72 hours! I love all the shaders and art, they're very high quality! The stirring feels very nice too,
Here's some constructive feedback:
I would add a little bit more padding in the UI at the top, right now it looks like it's cut off
I wasn't aware that you could buy more than 3 things, I thought I would have had to replace others. So maybe explain that if you buy more than 3 ingredients they will still appear.
Like others have mentioned, it would be nice to be able to remove ingredients from your inventory, and it would also be nice to see your inventory.
At a certain point there isn't really any progress anymore, you're just spamming 1,2,3 and hoping for the best, which gets a bit repetitive.
I think the Phoenix Feather doesn't really help late game, since your ingredient list is already so long it kinda just takes up space.
I would love if we were able to buy upgrades like a faster hand for ingredients, or maybe faster stirring.
Maybe you could implement a controllable heat source, and then certain ingredients work better at higher temperatures and others work better at a lower temperature, or they have bonus effects above certain temperatures, could also do a magic ice fire.
Overall a very high quality game for a game jam, great job :D