Swedish Moralkaka (lit. morality cookie)A preachy, insincere, or trivial moral lesson.

https://svenska.se/tre/?sok=moralkaka Sven förstörde stämningen under julmiddagen med en moralkaka om bristande solidaritet med hemlösa = Sven ruined the mood during Christmas dinner with a morality cookie about lacking solidarity with the homeless Rektorn delade ut moralkakor som "man ska inte slåss" under sitt tal = The principal handed out morality cookies like "you shouldn't fight" during his speech Hjälten levererade en moralkaka i slutet av varje avsnitt = The hero delivered a morality cookie at the end of each episode