Ycaroh Kitchen Blog

Traditional French Onion Soup

Sopa de Cebola

Prep Time

15 minutes

Cook Time

1 hour 30 minutes

Total Time

1 hour 45 minutes

Servings

4

Yield

4 servings

Calories

Approximately 400 calories
Traditional French Onion Soup is a masterpiece of French cuisine, a testament to the power of simplicity and the art of slow cooking. This soup is all about the onions, caramelized to perfection, creating a rich base that’s both sweet and savory. Simmered in a hearty beef broth and finished with a splash of wine, each spoonful offers a depth of flavor that’s both comforting and sophisticated. The soup is then topped with a crusty slice of French bread and a generous layer of melted Gruyère cheese, broiled until bubbly and golden. This dish is not just a meal; it’s an experience, transporting you to a quaint bistro in the heart of Paris with every bite. Whether you’re a connoisseur of French cuisine or simply in search of a warm, comforting dish, this Traditional French Onion Soup is sure to satisfy.

Ingredients

  • 5 large onions, thinly sliced
  • 4 tablespoons of unsalted butter
  • 1 teaspoon of sugar
  • 2 cloves of garlic, minced
  • 8 cups of beef broth
  • 1/2 cup of dry white wine
  • 1 bay leaf
  • 1/4 teaspoon of dried thyme
  • Salt and freshly ground black pepper to taste
  • 4 slices of crusty French bread
  • 1 cup of grated Gruyère cheese
  • Comments: The key to this soup is patience—allow the onions to caramelize slowly to develop the soup’s signature flavor.

Instructions

  • In a large pot, melt the butter over medium heat. Add the onions and sugar, cooking slowly, stirring frequently, until the onions are deeply caramelized, about 45 minutes to 1 hour.
  • Add the garlic and cook for another 2 minutes. Stir in the wine, scraping any browned bits off the bottom of the pot.
  • Add the beef broth, bay leaf, thyme, salt, and pepper. Bring to a simmer, then reduce the heat and cook for another 30 minutes.
  • Preheat the broiler. Ladle the soup into oven-safe bowls. Top each with a slice of French bread and a generous amount of grated Gruyère cheese.
  • Broil until the cheese is bubbly and golden brown, about 3-5 minutes. Watch carefully to prevent burning.

Tips & Tricks

  • For a richer flavor, use homemade beef broth.
  • If you don’t have oven-safe bowls, toast the bread with cheese separately and then add it on top of the soup before serving.
  • A splash of brandy or sherry can add an extra layer of complexity to the soup.

Mise en Place

Ingredients

Utensils

  • Onions
  • Unsalted butter
  • Sugar
  • Garlic
  • Beef broth
  • Dry white wine
  • Bay leaf
  • Dried thyme
  • Salt
  • Freshly ground black pepper
  • Crusty French bread
  • Grated Gruyère cheese
  • Large pot
  • Oven-safe bowls
  • Broiler
  • Cheese grater
  • Ladle

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