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French Onion Soup

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A savory classic! French onion soup topped with bread and loaded with gruyere cheese.
Course Soups, Stews & Chilis
Cuisine French
Keyword caramelized onion, onion, soup
Prep Time 5 minutes
Cook Time 2 hours 15 minutes
Total Time 2 hours 20 minutes
Servings 6 servings
Calories 640
Author Laurie McNamara

Ingredients

  • 4 tablespoons unsalted butter
  • 3 pounds onions sliced (I use a mixture of red and yellow onions)
  • 3 cloves garlic minced
  • 2 sprigs fresh thyme
  • 2 bay leaves
  • 1/2 cup dry red wine like merlot, malbec or cabernet
  • 4 cups beef broth
  • 4 cups low-sodium chicken broth
  • 12 ounces French baguette sliced (about 12 slices)
  • 3 cups grated gruyere cheese
  • kosher salt
  • freshly ground black pepper

Instructions

  • Place oven-safe bowl or crocks on a rimmed baking sheet.
  • Over medium heat, melt the butter in a heavy bottom pot. Add in the onions, garlic, thyme, bay leaves and a pinch of salt and pepper. Cover and cook for 30 minutes, stirring halfway through.
  • Uncover and continue to cook, stirring occasionally for an additional hour. Increase the heat under the pot to medium-high until the onions are a deep golden brown, about 15 minutes. Pour in the wine and reduce by half.
  • Then pour in the beef and chicken broth and bring to a simmer. Once bubbly, reduce the heat to low and simmer, uncovered for 30 minutes. Taste and season with kosher salt and black pepper. (for me it was 1-1/2 teaspoons of kosher salt and 1/4 teaspoon black pepper)
  • Ladle about a half cup of the soup into the crocks. Place one slice of french bread onto soup, top with a little cheese and then ladle in more soup. Float another slice of bread on top and divide the remaining cheese over top. note: the two slices of bread is totally optional, we love it but you can of course do the one slice.
  • Preheat your broiler, once hot- slide the pan holding the soups underneath. Broil until the cheese has melted and is slightly golden brown.
  • Top with snipped fresh chives and serve immediately.

Nutrition

Serving: 1serving | Calories: 640kcal | Carbohydrates: 53g | Protein: 32g | Fat: 32g | Saturated Fat: 18g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 93mg | Sodium: 1222mg | Potassium: 679mg | Fiber: 5g | Sugar: 11g | Vitamin A: 881IU | Vitamin C: 18mg | Calcium: 786mg | Iron: 3mg