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A bowl of rich and cheesy French Onion Soup topped with toasted bread and herbs.

French Onion Soup

A comforting and rich soup featuring caramelized onions, beef broth, and topped with crusty baguette and gooey gruyère cheese.
Prep Time 15 minutes
Cook Time 9 hours
Total Time 9 hours 15 minutes
Servings: 6 servings
Course: Appetizer, Main Course
Cuisine: French
Calories: 280

Ingredients
  

Main Ingredients
  • 4 large onions, thinly sliced Sweet onions like Vidalia or yellow onions are recommended.
  • 4 cups beef broth For a vegetarian version, substitute with vegetable broth.
  • 1 cup dry white wine Can be substituted with additional broth or a splash of apple cider vinegar.
  • 2 tablespoons butter
  • 1 teaspoon sugar Helps with caramelization of the onions.
  • Salt and pepper to taste
  • 1 baguette sliced Traditional choice for topping.
  • 1 cup gruyère cheese, shredded Other options include Swiss or mozzarella.

Method
 

Preparation
  1. In a crock pot, melt butter and add the sliced onions. Cook on low for about 6 hours, stirring occasionally, until caramelized.
  2. Add the beef broth, white wine, sugar, salt, and pepper to the crock pot.
  3. Cover and cook on low for an additional 2-3 hours.
  4. Preheat the oven broiler.
  5. Ladle the soup into oven-safe bowls, top with sliced baguette and gruyère cheese.
  6. Place bowls under the broiler for about 2-3 minutes, until the cheese is bubbly and golden.
  7. Serve hot and enjoy!

Notes

Pairs well with green salad or roasted vegetables. Store leftovers in an airtight container for up to 3 days, or freeze for up to 3 months.
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