I wanted to recreate this soup once at home. A similar mushroom I could find were the brown Baby Bella mushrooms.
Potatoes are called “Erdäpfel” in Austria, and their entry into Viennese cuisine was consistently difficult. Potatoes were brought to Vienna as perennials by the botanist Charles de l’Ecluse in 1588 and were considered harmful and poisonous for a long time.
When there was a shortage of food during the Napoleonic Wars, potatoes suddenly gained popularity. Since then, they have become an integral part of Viennese cuisine and are served time and again in a wide variety of ways: as a salad, boiled, fried, roasted, pureed or as a dough for dumplings and pasta.