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Ooey-Gooey French Onion Soup

This French Onion Soup is hearty, comforting and full of flavor. It's prepared with beef broth and caramelized onions and topped with crispy bread and ooey gooey Swiss cheese. What's not to love?

Prep Time
10 mins
Cook Time
10 mins
Total Time
1 hr
Servings: 4
Calories: 320 kcal
Course: Main Course
Cuisine: American

Ingredients

  • 1 tablespoon unsalted butter
  • 3 large yellow onions, thinly sliced
  • 1 teaspoon kosher salt
  • 1 clove garlic, minced
  • 1/4 teaspoon sugar
  • 1/4 teaspoon dried thyme
  • 1 bay leaf
  • 4 cups (or 1 32 oz box) low sodium beef broth
  • 2 teaspoons Worcestershire sauce 
  • 1 cup bread cubes, french or ciabatta
  • 1 cup grated Swiss Cheese

Instructions

    Cup of Yum
  1. In a saucepan over medium heat, melt the butter.
  2. Add the onions and salt and cook until onions start to turn golden brown, stirring occasionally, about 30 minutes.
  3. Add the garlic, sugar, thyme and bay leaf and cook an additional 10 minutes.
  4. Add the stock and worcestershire sauce and bring to a boil. Reduce heat to low and simmer until the onions are very tender, about 10 minutes.
  5. Heat the oven to broil. Place the bread cubes on a baking sheet and broil for 3-5 minutes, or until crisp and golden.
  6. Ladle the soup into oven-proof bowls. Top each bowl of soup with a handful of croutons and a handful of cheese.
  7. Place under the broiler until the cheese is melted, about 2 minutes.

Notes

  • What kind of onions are best for French Onion Soup? Yellow onions are the most commonly used onions for French Onion Soup, as they have a slightly sweet and mild flavor that becomes rich and caramelized when cooked for a long time.
  • Can I use a different type of cheese instead of Swiss? Totally! You can use other types of cheese, such as Gruyere or Parmesan or really mild cheese that you love.
  • Can I make French Onion Soup in advance? Yep! You can make French Onion Soup in advance and store it in the refrigerator for up to three days without the cheese or bread. When reheating, you may need to add more broth or water to adjust the consistency, then just broil the bread and cheese when you're ready to serve.

Nutrition Information

Calories 320kcal (16%) Carbohydrates 16g (5%) Protein 12g (24%) Fat 23g (35%) Cholesterol 30mg (10%) Sodium 1620mg (68%) Fiber 2g (8%) Sugar 1g (2%)

Nutrition Facts

Serving: 4Serving

Amount Per Serving

Calories 320

% Daily Value*

Calories 320kcal 16%
Carbohydrates 16g 5%
Protein 12g 24%
Fat 23g 35%
Cholesterol 30mg 10%
Sodium 1620mg 68%
Fiber 2g 8%
Sugar 1g 2%

* Percent Daily Values are based on a 2,000 calorie diet.