Slow Cooker French Onion Soup Cook's Country
Experience classic comfort food with a modern twist in this Slow Cooker French Onion Soup recipe from Cook's Country. This hearty soup features perfectly caramelized yellow onions, slow-cooked to golden perfection over eight hours for deep, rich flavor. A splash of dry white wine and fragrant thyme elevate the traditional broth, while toasted baguette slices topped with bubbly, golden Gruyère cheese provide a satisfying, cheesy crunch. Made effortlessly in a slow cooker, this recipe transforms minimal prep time into a gourmet meal ideal for cozy dinners or entertaining guests. Serve this French onion soup straight from the oven for a warm, savory dish that’s as elegant as it is comforting. Perfect for busy weeknights or highlighting a dinner party menu, it's a true classic that never fails to impress.
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Ingredients
- 8 cups (sliced, about 4-5 medium onions) Yellow onions
- 1 teaspoon Salt
- 4 tablespoons Unsalted butter
- 1 teaspoon Brown sugar
- 3 cloves Garlic cloves, minced
- 0.5 cups Dry white wine
- 8 cups Beef broth
- 1 leaf Bay leaf
- 4 sprigs Fresh thyme
- 8 slices Baguette slices
- 2 cups Gruyère cheese, shredded
- 0.5 teaspoons Black pepper
Directions
Step 1
Peel and thinly slice the yellow onions. Aim for even slices to ensure consistent caramelization.
Step 2
In a slow cooker, combine the sliced onions, salt, unsalted butter, and brown sugar. Stir well to coat the onions evenly.
Step 3
Cover the slow cooker and cook on LOW for 8-10 hours, stirring halfway through, until the onions are deeply caramelized and golden brown.
Step 4
Add the minced garlic to the slow cooker and stir to combine. Cook for an additional 15 minutes on LOW.
Step 5
Turn the slow cooker to HIGH. Add the dry white wine and let it cook for 10-15 minutes to reduce slightly.
Step 6
Stir in the beef broth, bay leaf, and fresh thyme sprigs. Cover and cook on HIGH for another 2 hours to allow the flavors to meld.
Step 7
Discard the bay leaf and thyme sprigs. Season the soup with black pepper to taste.
Step 8
Preheat your oven's broiler. Place the baguette slices on a baking sheet and toast under the broiler until golden brown, about 1-2 minutes per side.
Step 9
Ladle the soup into oven-safe bowls. Top each bowl with a toasted baguette slice and a generous handful of shredded Gruyère cheese.
Step 10
Place the bowls on a baking sheet and broil until the cheese is melted and bubbly, about 2-3 minutes. Serve hot and enjoy!
Nutrition Facts
| Serving size | (4342.0g) |
|---|
| Amount per serving | % Daily Value* |
|---|---|
| Calories | 2891.4 |
| Total Fat 128.5g | 0% |
| Saturated Fat 71.2g | 0% |
| Polyunsaturated Fat 0.2g | |
| Cholesterol 364.0mg | 0% |
| Sodium 12704.9mg | 0% |
| Total Carbohydrate 305.4g | 0% |
| Dietary Fiber 39.2g | 0% |
| Total Sugars 79.7g | |
| Protein 127.5g | 0% |
| Vitamin D 48.0IU | 0% |
| Calcium 2775.8mg | 0% |
| Iron 16.9mg | 0% |
| Potassium 4218.6mg | 0% |
Source of Calories