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Slow Cooker French Onion Soup


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  • Author: Sarah Martinez
  • Total Time: 0 hours
  • Yield: Serves approximately 6

Description

Slow Cooker French Onion Soup is the ultimate comfort dish, blending sweet caramelized onions with rich beef broth, topped with gooey Gruyère cheese and crusty baguette. This hearty soup warms you from the inside out, making it perfect for chilly evenings or gatherings. With minimal effort, you can create a bowl of deliciousness that will impress family and friends alike.


Ingredients

Scale
  • 4 large yellow onions, thinly sliced
  • 4 cups low-sodium beef broth
  • 1 cup dry white wine
  • 4 sprigs fresh thyme (or 2 tsp dried thyme)
  • 1 baguette, sliced thickly
  • 1 cup Gruyère cheese, grated
  • 3 cloves garlic, minced
  • 1 tsp sugar
  • 2 tbsp unsalted butter
  • Salt and pepper to taste

Instructions

  1. In a large skillet, melt butter over medium heat. Add sliced onions and sugar; cook until golden brown (about 20 minutes).
  2. Stir in minced garlic and thyme; cook for another 1-2 minutes.
  3. Transfer mixture to a slow cooker. Pour in beef broth and white wine; stir gently.
  4. Season with salt and pepper. Cover and cook on low for 6-8 hours.
  5. To serve, ladle soup into oven-safe bowls. Top with baguette slices and Gruyère cheese before broiling until bubbly.
  • Prep Time: 15 minutes
  • Cook Time: 6-8 hours
  • Category: Soup
  • Method: Slow Cooking
  • Cuisine: French

Nutrition

  • Serving Size: 1 cup (240g)
  • Calories: 320
  • Sugar: 6g
  • Sodium: 650mg
  • Fat: 15g
  • Saturated Fat: 9g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 37g
  • Fiber: 2g
  • Protein: 9g
  • Cholesterol: 35mg