My (US) colleagues were bitterly disappointed that although the tracks on DTH's 1998 christmas album are available via YouTube, they were missing out on the liner note recipe for Christstollen nach Alice B. Toklas'r Art: https://de.wikipedia.org/wiki/Wir_warten_auf’s_Christkind#Ar... ; don't germans have at least a half century experience with cannabis v. alcohol by now?

EDIT: even Duden knows how to kiff (schwaches Verb; Perfektbildung mit „hat“), see https://www.duden.de/konjugation/kiffen