Here’s one of the booths advertising Glüwein, specifically. They sell other things too, like eggnog, which is called “Eierpunsch.” An Eierpunsch sounds like something you get when you go to a sports pub and make fun of the local soccer team.
06-Weihnachtsmarkt-Marktkirche-Glüwein-Stand
Oh God, My Wife Is German. 