Description
A cozy and effortless French onion soup made in a slow cooker, featuring sweet, jammy onions and rich beef broth, topped with melted Swiss cheese.
Ingredients
Scale
- 5–6 large yellow onions
- 4 tablespoons butter
- 6 cups beef broth (low-sodium)
- 2 tablespoons Worcestershire sauce
- 1 teaspoon dried thyme
- 1 bay leaf
- 1 loaf French bread or any hearty loaf
- 8 ounces Swiss cheese
Instructions
- In the slow cooker, combine sliced onions and butter, season with a pinch of salt, and cook on LOW for 8-10 hours.
- After the onions are caramelized, add beef broth, Worcestershire sauce, thyme, and bay leaf, then cook on HIGH for an additional 2-3 hours.
- For serving, ladle soup into ovenproof bowls, top with a slice of bread, and cover with Swiss cheese.
- Broil the bowls on the top rack for about 3 minutes until the cheese is melted and bubbly.
Notes
For a vegetarian version, substitute beef broth with vegetable broth. Other cheeses like provolone or Gruyere can also be used.
- Prep Time: 15 minutes
- Cook Time: 600 minutes
- Category: Soups
- Method: Slow Cooking
- Cuisine: French
Nutrition
- Serving Size: 1 bowl
- Calories: 350
- Sugar: 8g
- Sodium: 900mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 10g
- Cholesterol: 30mg