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French Onion Soup

French Onion Soup

Classic and simple, this beef-broth based soup features the flavor of caramelized onions topped with grated Swiss and Gruyere cheese melted over the thick cubes of toasted bread.


  • 1/4 cup Challenge Unsalted Butter (1/2 stick)
  • 6 medium yellow onions, thinly sliced (6 cups)
  • 1 tablespoon all-purpose flour
  • 1/4 teaspoon black pepper
  • 3 (14 ounce) cans “lower sodium” beef broth
  • 1 1/2 cups water
  • 1/4 cup dry sherry
  • 1 cup grated Swiss cheese
  • 1/4 cup grated Gruyere cheese
  • 6 slices sourdough French bread, toasted and cubed


  1. Melt butter in saucepan over medium heat. Add onions; cook slowly (25 minutes) until tender.
  2. Blend in flour and black pepper. Stir in broth and water. Bring to a boil and simmer for 30 minutes.
  3. Add Sherry. Ladle into ovenproof bowls. Float bread cubes and sprinkle with cheeses.
  4. Broil until cheeses melt and begin to brown.

Source: Challenge Home Economist

Recipe and photo credit: Challenge Dairy -


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