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–+ servings
Dutch Oven French Onion Soup

Ultimate Dutch Oven French Onion Soup for Cozy Nights

Warm, soul-soothing Dutch Oven French Onion Soup with caramelized onions and Gruyere cheese—a cozy dish perfect for autumn nights.
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Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings: 6 bowls
Course: Soup
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Soup
  • 4 large Yellow Onions Sliced thinly
  • 1 stick Salted Butter At room temperature
  • 1 teaspoon Kosher Salt Adjust if using table salt
  • 1 teaspoon Black Pepper Freshly ground
  • 1 tablespoon Red Wine Vinegar Alternatively white wine vinegar
  • 4 cups Beef Broth Use vegetable broth for vegetarian option
  • 1 teaspoon Fresh Thyme Or 1 teaspoon dried thyme
For the Croutons
  • 1 loaf French Baguette Sliced into 1-inch thick pieces
  • 1 teaspoon Garlic Salt Fresh minced garlic can be used
For the Topping
  • 1 cup Gruyere Cheese Grated
  • 1 cup White Wine Or additional broth for alcohol-free

Equipment

  • Dutch oven

Method
 

Preparation Steps
  1. Begin by slicing four large yellow onions thinly and set them aside in a bowl.
  2. In a large Dutch oven, melt 1 stick of salted butter over medium heat.
  3. Add the sliced onions, 1 teaspoon of kosher salt, freshly cracked black pepper, and 1 tablespoon of red wine vinegar to the pot. Stir frequently for 40 to 50 minutes until the onions are deeply caramelized.
  4. While the onions are caramelizing, slice a French baguette into 1-inch thick pieces. Butter each slice generously and sprinkle with garlic salt.
  5. Once your onions are caramelized, pour in 1 cup of white wine to deglaze the pot.
  6. Stir in 4 cups of beef broth and 1 teaspoon of fresh thyme leaves, bringing it to a gentle boil over medium-high heat.
  7. Ladle the soup into oven-safe bowls or leave it in the Dutch oven. Top each serving with half of your prepared garlic croutons and a generous amount of grated Gruyere cheese.
  8. Carefully place under the broiler for 3 to 4 minutes until the cheese bubbles and develops a golden-brown crust.
  9. Serve the soup hot with the remaining crispy croutons on the side for dipping.

Nutrition

Serving: 1bowlCalories: 350kcalCarbohydrates: 30gProtein: 10gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gCholesterol: 50mgSodium: 800mgPotassium: 500mgFiber: 2gSugar: 6gVitamin A: 500IUVitamin C: 5mgCalcium: 250mgIron: 2mg

Notes

Choose yellow onions for optimal sweetness. Allowing the onions to caramelize slowly over medium heat enhances their flavor. Store the soup without croutons to maintain freshness and avoid sogginess.

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