Instructions

  1. Place potatoes, carrots, parsley and celery in a soup pot.
  2. Cover with about 8 cups water.
  3. Add salt, pepper and mushrooms.
  4. Bring to a boil, then reduce heat and simmer, half covered, for 1 hour.
  5. When soup is almost done, melt butter in a small frying pan.
  6. Add onions and sauté until transparent.
  7. Add flour and stir until flour is brown, 5 minutes.
  8. Stir into soup and serve.