Killepitsch is a traditional liquor based on herbs made in Düsseldorf. So it is a must to try this when visiting Düsseldorf. You can order a glass through a small window en drink it outside standing at some wooden tables.

Et Kabuffke, Flinger Str. 1, 40213 Dusseldorf, North Rhine-Westphalia, Germany
+49 211 133269

Visited December 2015. You can find my review about Et Kabuffke also on TripAdvisor.