"The Irish grandmother of a dear friend of mine used to melt butter in a pot, then pour in beer to warm it. I'm told this simple version of butter beer dates back centuries. Author J. K. Rowling does not provide a recipe for butterbeer in her wildly popular Harry Potter book series, so this version is pure speculation. Harry Potter's butterbeer contains a mild intoxicant, but this dessert version is suitable for children and tasty enough to please adults as well...."