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French Onion Soup Recipe

Published: Apr 24, 2025 by Margie · This post may contain affiliate links · Leave a Comment

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Savor the Rich Depths of Classic French Onion Soup

Embark on a culinary journey with this timeless French Onion Soup recipe, where caramelized onions meet rich beef broth and melted Gruyère cheese for an unforgettable dining experience.

French Onion Soup Recipe

Whether you're hosting an elegant dinner party or craving comfort food on a chilly evening, this French Onion Soup brings restaurant-quality flavors right to your kitchen table. Looking for more comforting soup recipes? Try our delicious cauliflower soup for another warming option.

Perfect for special occasions or simply elevating your weeknight dinner routine, this French Onion Soup recipe delivers that coveted combination of sweet onions, savory broth, and gooey cheese that food lovers dream about. Ready to master this French classic? Let's dive into this rewarding culinary adventure.

French Onion Soup: A Symphony of Flavors in Every Bowl

This French Onion Soup recipe transforms simple ingredients into something truly extraordinary. If you enjoy hearty soups, you might also love our hamburger macaroni soup for a different take on comfort food.

The magic lies in perfectly caramelized onions, which create a foundation of deep, complex flavors. When combined with rich beef broth and topped with crusty bread and melted cheese, you'll understand why this soup has stood the test of time.

Serving Suggestions:

  • Pair with a crisp green salad and our savory party bread for a complete meal
  • Serve alongside garlic butter steak bites for an impressive dinner
  • Complement with a glass of the same dry white wine used in the recipe

Pro Tips for Perfect French Onion Soup:

  1. Patient Caramelization: Take your time with the onions - rushing this step will rob your soup of its signature sweetness and depth
  2. Quality Ingredients: Use real Gruyère cheese and fresh herbs for authentic flavor
  3. Proper Seasoning: Taste and adjust seasoning before the final broiling step
  4. Temperature Control: Keep the heat low and steady while caramelizing onions
  5. Bread Selection: Choose a sturdy baguette that can hold up to the broth
French Onion Soup Recipe

Classic French Onion Soup Recipe:

  • Preparation time: 20 minutes
  • Cooking time: 1 hour 30 minutes
  • Servings: 4-6
  • Equipment: Large Dutch oven, oven-safe soup bowls, broiler

Looking for more French-inspired dishes? Check out our chicken with creamy Dijon sauce for another elegant option.

Ingredients:

For the Soup:

  • 3 tablespoons olive oil
  • 2 tablespoons unsalted butter
  • 5-6 large sweet onions, thinly sliced
  • 1 teaspoon granulated sugar
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ cup dry white wine
  • 2 tablespoons all-purpose flour
  • 7 cups beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 bay leaf
  • 2-3 sprigs fresh thyme
  • 1 sprig fresh rosemary
  • 1 tablespoon balsamic vinegar

For the Topping:

  • 1 small baguette, sliced into 1-inch rounds
  • 2 cups grated Gruyère cheese
  • 1 garlic clove, cut in half

Directions:

  1. Prepare Your Base: In a large Dutch oven, melt butter with olive oil over medium-low heat. Add sliced onions, sugar, salt, and pepper, stirring to coat evenly.
  2. Caramelize the Onions: Cook onions slowly for 40-45 minutes, stirring occasionally, until they achieve a deep golden-brown color. If sticking occurs, deglaze with a splash of water.
  3. Deglaze and Thicken: Increase heat to medium-high and add white wine, scraping up browned bits. Once reduced by half, sprinkle flour over onions and cook for 1-2 minutes, stirring constantly.
  4. Build the Soup: Pour in beef broth, Worcestershire sauce, and add bay leaf, thyme, and rosemary. Bring to a boil, then reduce heat and simmer covered for 30-40 minutes.
  5. Prepare Bread Topping: While soup simmers, preheat broiler. Toast baguette slices until golden on both sides, then rub with cut garlic clove.
  6. Final Touches: Remove herbs from soup and stir in balsamic vinegar. Ladle into oven-safe bowls.
  7. Create the Crust: Top each bowl with toasted bread and generous amounts of Gruyère cheese. Broil for 2-4 minutes until cheese is bubbly and golden.

Ready to Serve!

Your French Onion Soup is now ready to delight your taste buds with its rich, complex flavors and that iconic cheese pull that makes this dish so Instagram-worthy.

Storage Solutions:

  • Store soup without bread and cheese toppings in an airtight container for up to 4 days
  • Freeze the base soup (without toppings) for up to 3 months
  • Reheat gently on stovetop and add fresh toppings before serving
  • For best results, bring soup to room temperature before reheating
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French Onion Soup Recipe

French Onion Soup Recipe

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Looking for more French-inspired dishes? Check out our chicken with creamy Dijon sauce for another elegant option.

  • Total Time: 1 hour 50 minutes
  • Yield: 4-6 1x

Ingredients

Scale

For the Soup:

  • 3 tablespoons olive oil
  • 2 tablespoons unsalted butter
  • 5-6 large sweet onions, thinly sliced
  • 1 teaspoon granulated sugar
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ cup dry white wine
  • 2 tablespoons all-purpose flour
  • 7 cups beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 bay leaf
  • 2-3 sprigs fresh thyme
  • 1 sprig fresh rosemary
  • 1 tablespoon balsamic vinegar

For the Topping:

 

  • 1 small baguette, sliced into 1-inch rounds
  • 2 cups grated Gruyère cheese
  • 1 garlic clove, cut in half

Instructions

  • Prepare Your Base: In a large Dutch oven, melt butter with olive oil over medium-low heat. Add sliced onions, sugar, salt, and pepper, stirring to coat evenly.
  • Caramelize the Onions: Cook onions slowly for 40-45 minutes, stirring occasionally, until they achieve a deep golden-brown color. If sticking occurs, deglaze with a splash of water.
  • Deglaze and Thicken: Increase heat to medium-high and add white wine, scraping up browned bits. Once reduced by half, sprinkle flour over onions and cook for 1-2 minutes, stirring constantly.
  • Build the Soup: Pour in beef broth, Worcestershire sauce, and add bay leaf, thyme, and rosemary. Bring to a boil, then reduce heat and simmer covered for 30-40 minutes.
  • Prepare Bread Topping: While soup simmers, preheat broiler. Toast baguette slices until golden on both sides, then rub with cut garlic clove.
  • Final Touches: Remove herbs from soup and stir in balsamic vinegar. Ladle into oven-safe bowls.

 

  • Create the Crust: Top each bowl with toasted bread and generous amounts of Gruyère cheese. Broil for 2-4 minutes until cheese is bubbly and golden.
  • Author: Margie
  • Prep Time: 20 minutes
  • Cook Time: 1 hour 30 minutes
French Onion Soup RecipeFrench Onion Soup RecipeFrench Onion Soup Recipe
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