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Slow Cooker French Onion Soup

Prep Time 5 minutes
Cook Time 6 hours
Total Time 6 hours 5 minutes
Course Appetizer, dinner
Cuisine French
Servings 10

Ingredients
  

  • 3 large sweet onions sliced
  • 2 tablespoons minced garlic
  • 1/4 cup butter melted
  • 1 tablespoon balsamic vinegar
  • 2 tablespoons Dixie Crystals light brown sugar
  • 3 tablespoons all-purpose flour
  • 8 cups beef broth
  • 1/2 cup dry sherry optional
  • 1 loaf French bread sliced and toasted
  • 1 cup Gruyere cheese shredded

Instructions
 

  • In a slow cooker, combine onions, garlic, butter, brown sugar, and flour. Cook on low for 6-8 hours, or on high for 3-4 hours, until onions are caramelized.
  • Stir in beef broth and sherry (if using). Continue to cook on low for 30 minutes.
  • Ladle soup into oven-safe bowls.
  • Top each bowl with a slice of toasted French bread and sprinkle with Gruyere cheese.
  • Broil until cheese is melted and bubbly.
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