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Caramelized French Onion Soup Recipe

Caramelized French Onion Soup Recipe


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4.7 from 40 reviews

  • Total Time: 1 hour 5 minutes
  • Yield: 5 1x

Description

Hearty michael symon french onion soup celebrates classic comfort with rich, caramelized onions and savory broth. Melted cheese crowns this rustic French classic, offering a warm embrace of deeply developed flavors.


Ingredients

Scale
  • 4 lbs (1.8 kg) yellow onions, peeled and thinly sliced
  • 6 cups (1.4 L) beef or vegetable stock
  • ½ cup (120 ml) dry white wine
  • 3 tbsps (45 ml) butter
  • 4 cloves garlic, minced
  • 3 tbsps (24 g) flour
  • 1 tsp Worcestershire sauce
  • 1 bay leaf
  • 3 sprigs fresh thyme (or 1 tsp dried thyme)
  • fine sea salt, to taste
  • freshly cracked black pepper, to taste
  • grated or sliced cheese (Gruyere, Asiago, Swiss, Gouda, or Mozzarella)

Instructions

  1. Caramelize Onions: In a heavy-bottomed stockpot over medium-high heat (350°F/175°C), melt butter and slowly cook sliced onions, stirring every 3-5 minutes for approximately 30 minutes until deep golden-brown.
  2. Develop Flavor Base: Add minced garlic and sauté briefly, then sprinkle flour to create a roux, stirring continuously for one minute to enhance the soup’s thickness and richness.
  3. Build Liquid Foundation: Deglaze the pot with wine, scraping caramelized bits from the bottom, then pour in beef stock, Worcestershire sauce, bay leaf, and fresh thyme, combining thoroughly.
  4. Simmer and Refine: Reduce heat to medium-low, cover, and simmer for 10-15 minutes, allowing flavors to meld; remove bay leaf and thyme sprigs, then season with salt and freshly ground black pepper.
  5. Prepare Cheese Topping: Slice baguette into 1-inch pieces, toast at 400°F (204°C) for 6-8 minutes until golden and crisp, then arrange oven-safe bowls on a baking sheet.
  6. Final Assembly and Broiling: Ladle hot soup into bowls, top with toasted baguette slice and generous grated cheese, then broil 6 inches from heat source for 2-4 minutes until cheese melts and turns bubbly and golden.
  7. Serve Immediately: Remove from oven promptly and serve piping hot, ensuring guests experience the soup’s intense, comforting flavors.

Notes

  • Caramelize Carefully: Slow cooking onions is crucial for developing deep, sweet flavor; rushing this step compromises the soup’s fundamental taste profile.
  • Roux Technique Matters: Stirring flour thoroughly prevents lumps and ensures a smooth, velvety soup texture without unwanted clumps.
  • Cheese Selection Tip: Choose a high-moisture, meltable cheese like Gruyère or Comté for the most authentic French onion soup experience.
  • Broiling Precision: Watch the cheese topping closely during the final 2-4 minutes to achieve perfect golden-brown color without burning the surface.
  • Prep Time: 15 minutes
  • Cook Time: 50 minutes
  • Category: Dinner, Appetizer
  • Method: Sautéing
  • Cuisine: American

Nutrition

  • Serving Size: 5
  • Calories: 250
  • Sugar: 5 g
  • Sodium: 800 mg
  • Fat: 10 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 3 g
  • Trans Fat: 0 g
  • Carbohydrates: 30 g
  • Fiber: 2 g
  • Protein: 8 g
  • Cholesterol: 25 mg