For the Bratwurst Soup anno 1827, simmer the sausages with the grated lemon zest, the coriander, the lemon juice and the beef broth for 1/2 hour just below boiling point. Be careful if the heat is too high, the sausages will burst.Then remove the sausages.
In another suitable saucepan, prepare a light roux with butter and flour, pour in the soup and continue to simmer until the liquid thickens slightly.Meanwhile, chop the sausages into small pieces and arrange them in a well-heated soup pot.
Pour the soup through a strainer and serve the sausage soup with baked bread slices.
Preparation Tip:
According to another old recipe, instead of the original Linz cookbook recipe used here, the sausage soup is seasoned with caricander, meaning coriander, and a few threads of saffron.