Harry and Hermione made their way to the back of the room, where there was a small, vacant table between the window and a handsome Christmas tree, which stood next to the fireplace. Ron came back five minutes later, carrying three foaming tankards of hot butterbeer.
"Merry Christmas!" he said happily, raising his tankard.
Harry drank deeply. It was the most delicious thing he’d ever tasted and seemed to heat every bit of him from the inside.
—Prisoner of Azkaban, Chapter 10
I want butter beer