Almdudler is an Austrian, carbonated soft-drink with herbal extracts which, according to Mr. VSiB was quite popular in Belgium (and other parts of Europe) in the 1970s. Recently, it seems to be making a bit of a comeback, and along with that comeback is a vegan logo on the label! A lot of sodas are accidentally vegan, but few in Belgium proudly wear it on their sleeve.
Mr. VSiB likens the flavor of Almdudler a bit to Canada Dry Ginger Ale. It’s not exactly the same, but if I had to think of a more well-known drink to compare it to, that’s probably indeed the closest comparison. It’s not too sweet, and it’s got a light, herby flavor. With the weather turning spring-like, I can see a chilled bottle of Almdudler being a nice refreshing change from the usual soft-drinks out there. (And according to Wikipedia, it makes a good mixer with both wine and beer.)
I found this at the Delhaize Shop & Go, but it’s probably available at a variety of different supermarkets.