Brown Windsor Soup with Horse Radish Dumplings
Sounds like the name for a couple of Marx Brothers films, like Duck Soup and Horsefeathers.
Ms Bareham "This is the forebear of the ubiquitous "brown soup" that was the
standard pre-and post-war bill of fair at boarding houses throughout the British
Isles-and largely responsible for giving British soups a bad name. "
Uncanny, in1993 she knew what windsorsoup would turn out like.
"Made properly it is rich and sustaining,rather like a liquid stew." Ah that's more like it.
So now take the link and cook the soup

Eventually I started to doubt it myself. I began looking through books.The interesting thing about cookery books in Windsor Library, in all libraries, is that they are shelved next to books on pets...something to do with the Dewey Decimal system. ( If you want to irritate a librarian ask whether they have a DIY section. When they say yes ask if they have any books on shelves. Another good way is to borrow a book on Oirgami and make a kettle out of it. More suggestions welcome.)
So you can learn how to look after your goldfish and then learn how to cook it from the shelf next door.
I found Mrs Beaton's famous old recipe book, you know the one," Take three
swans, plucked, the brains of two sheep, and a large pig, diced. Marinade with two
tons of cabbage and an onion."
Brown Windsor Soup was not there.
Delia Smith? No. None of them!
And then I found
" A Celebration of Soup."
Publisher Michael Joseph.1993
Thank you Michael. Written by a lady with the apt name for a cookery book writer
Lindsay Bareham

I registered the name www.windsorsoup .co.uk sure that people would know it. Nobody did.