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The alluring aroma of freshly caramelized onions wafting through the kitchen is a comforting embrace, inviting everyone to gather around the table. French onion soup, with its rich flavors and elevated textures, has become a beloved staple for many home cooks. This Savory Slow Cooker French Onion Soup Extravaganza offers a beautiful marriage of simplicity and distinct taste, turning a classic recipe into a hassle-free slow-cooked delight. The slow cooking method allows for the full potential of flavors to develop, making each bowl a cozy meal that's perfect for chilly evenings or special occasions.

Savory Slow Cooker French Onion Soup Extravaganza

This savory slow cooker French onion soup features caramelized onions, rich beef broth, and melted Gruyère cheese, creating a comforting and flavorful dish. Perfect for chilly days, it's easy to prepare and serve.
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Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Course Soup
Cuisine American
Servings 6
Calories 300 kcal

Ingredients
  

  • 4 large yellow onions thinly sliced
  • 4 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 1 teaspoon granulated sugar
  • 4 cloves garlic finely minced
  • 8 cups beef broth
  • 2 teaspoons fresh thyme leaves
  • 1 leaf bay leaf
  • Salt and freshly ground black pepper to taste
  • 1 baguette cut into 1-inch thick slices
  • 2 cups shredded Gruyère cheese
  • Fresh parsley finely chopped (for garnish)

Instructions

  • In a large skillet, melt the unsalted butter and olive oil over medium heat.
  • Add the thinly sliced onions and granulated sugar, stirring occasionally for 15-20 minutes until caramelized.
  • Transfer the caramelized onions to the slow cooker and add minced garlic, beef broth, thyme, bay leaf, salt, and pepper.
  • Cover and cook on low for 6-8 hours or high for 3-4 hours.
  • Preheat the oven to 400°F (200°C) about 30 minutes before serving.
  • Toast the baguette slices in the oven for 5-7 minutes until golden and crispy.
  • Remove the bay leaf from the soup and adjust seasoning if necessary.
  • Ladle the soup into oven-safe bowls, placing a toasted baguette slice on top of each.
  • Sprinkle shredded Gruyère cheese over the bread and broil for 2-3 minutes until bubbling.
  • Garnish with chopped fresh parsley and serve hot.

Notes

For a vegetarian version, substitute beef broth with vegetable broth.
Keyword beef broth, cheese, comfort food, French onion, onions, slow cooker, soup