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–+ servings
Slow Cooker French Onion Soup

Slow Cooker French Onion Soup for Cozy, Stress-Free Nights

Experience the bliss of Slow Cooker French Onion Soup, a comforting dish perfect for busy nights.
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Prep Time 15 minutes
Cook Time 12 hours
Additional Cooking Time 3 hours
Total Time 15 hours
Servings: 4 bowls
Course: Soups
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Soup
  • 4-5 medium Onions Use yellow, red, or Vidalia for variety.
  • 4 tablespoons Butter Aids in caramelization.
  • to taste teaspoon Salt Enhances flavor.
  • to taste teaspoon Pepper Adjust according to preference.
  • 6 cups Beef Broth Or vegetable broth for a vegan option.
  • 1 teaspoon Fresh Thyme Or 1/2 teaspoon dried.
  • 1 tablespoon Balsamic Vinegar Balances sweetness.
  • 1 teaspoon Worcestershire Sauce Adds umami flavor.
For the Topping
  • 1 loaf Baguette Choose crusty variety.
  • 2 cups Gruyère Cheese Can substitute with Swiss or mozzarella.

Equipment

  • Slow cooker

Method
 

Step-by-Step Instructions
  1. Begin by thinly slicing the onions and placing them in your slow cooker. Add butter, salt, and pepper. Stir gently. Set slow cooker to low for 10-12 hours.
  2. Pour in the beef broth. Add thyme, balsamic vinegar, and Worcestershire sauce. Stir well and cover. Cook on low for an additional 2-4 hours.
  3. Slice the baguette into 1-inch thick pieces and toast in the broiler for 2-3 minutes until golden brown.
  4. Ladle hot soup into oven-safe bowls. Top with baguette slices and grated Gruyère. Broil for 2 minutes until cheese is melted.
  5. Once cheese is melted, remove from oven and let cool for a minute before serving.

Nutrition

Serving: 1bowlCalories: 350kcalCarbohydrates: 40gProtein: 12gFat: 15gSaturated Fat: 8gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 6gCholesterol: 35mgSodium: 900mgPotassium: 600mgFiber: 3gSugar: 5gVitamin A: 10IUVitamin C: 15mgCalcium: 200mgIron: 2mg

Notes

For best flavor and texture, avoid freezing the cheese-topped soup; garnish with cheese fresh before serving.

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