You have to enable it in System Preferences -> Keyboard -> Input Sources -> English -> English German Umlauts. MacOS won't accept this keyboard layout as default. In ...

Unfortunately, the other layouts are missing the German umlauts (ä, ö, ü) as well as other language/region specific symbols (ß, €, °). The solution is the following keyboard-layout based on the U.S.

Stand-up comedian Henning Wehn takes over a German class and highlights the importance ... Where would Düsseldorf be without its umlaut?