As requested! ;-)
Original/classic Jäger Sauce (Hunter sauce),
https://www.springlane.de/magazin/rezeptideen/jaegerschnitzel/
Translation:
200g onions
740g Champignon mushrooms
50g clarified butter
2 rosemary twigs
2 tablespoons flour
6 tablespoons white wine
400 ml vegetable broth
100 ml...