I agree with you on the cheese. From my understanding of the process, it's the milk and the aging that does the trick--not much Wizards can do to improve on that.

Is elf-made wine a canon or fanfiction invention? I wondered if there was magic to control all the conditions (temperature, etc.) if Wizarding wine might consistenly be better, but I don't know enough about wine-making to know.

I wonder about chocolate. Do you think that Honeydukes has all the different kinds of chocolate that Muggles do? Why would Honeydukes chocolate be better than Muggle chocolate? I agree that the candy is more imaginative in the Wizarding world, both good and bad. :)