You wouldn't want to eat most of the food that's mentioned in the "Harry Potter" books because it's either weird magical stuff, or it's British food. Either way: Gross. But there's one major exception.
The characters in "Harry Potter" drink something called Butterbeer, which basically sounds like a butterscotch version of root beer. And now, you can buy Butterbeer flavored ICE CREAM.
Yuengling's Ice Cream created the flavor out of buttercream and butterscotch ice creams, and a butterscotch swirl. It should be available in most grocery stores, and they say it's going to be available permanently.
Source: Huffington Post