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French Onion Soup

Print Recipe
Prep Time 20 minutes
Cook Time 9 hours 5 minutes
Total Time 9 hours 25 minutes
Servings: 6 servings
Ingredients Method

Ingredients
  

  • 5 large yellow onions thinly sliced
  • 3 tbsp butter
  • 1 tsp sugar
  • 6 cups beef broth
  • 1 cup dry white wine
  • 2 bay leaves
  • 1 tsp dried thyme
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 6 slices French bread toasted
  • 2 cups Gruyère cheese shredded

Method
 

  1. Place sliced onions, butter, and sugar in the slow cooker and toss to combine.
  2. Cook on HIGH for 1 hour uncovered, stirring once halfway through, until the onions begin to soften and release moisture.
  3. Add beef broth, white wine, bay leaves, thyme, salt, and pepper, then stir well.
  4. Cover and cook on LOW for 6 to 8 hours, until the onions are very soft and the broth is deeply flavored.
  5. Remove bay leaves and ladle soup into oven-safe bowls, top each with a slice of toasted French bread and generous amount of Gruyère cheese.
  6. Place bowls on a baking sheet and broil for 3-5 minutes until cheese is melted, bubbly, and golden brown.