French Onion Soup

  • Preparation Time5 mins
  • Cooking Time150 mins
  • Serves8
  • DifficultyMedium

For the soup:

4 large yellow onions
1/2 cup butter
1 generous cup dry white wine
4 cups low-sodium beef broth
4 cups low-sodium chicken broth
3 tablespoons fresh thyme leaves
4 to 5 dashes Worcestershire sauce
2 cloves garlic, minced

For the croutons:

Several thick slices French bread or baguette
Olive oil, for drizzling
8 ounces Gruyere cheese, sliced thick

1. Preheat the oven to 200°C. Slice the onions in half from root to tip, then slice them thin.

2. Melt the butter in a heavy ovenproof pot or Dutch oven over medium-low heat. Add the onions, stir to coat them in the butter and cook, covered, until translucent and soft, about 20 minutes.

3. Transfer the pot to the oven with the lid slightly ajar. Roast the onions for 1 hour, stirring twice to keep them from burning. (Some brown bits on the bottom of the pan are fine though.)

4. Return the pot to the stovetop over medium heat (keep the oven on) and pour in the wine. Stir, scraping the pan. Cook until the wine reduces, 5 minutes. Next, add the beef broth, chicken broth, thyme, Worcestershire sauce and garlic. Reduce the heat to low and let the soup simmer for 45 minutes.

5. Meanwhile, drizzle slices of French bread with olive oil and toast in the oven until golden. Set aside.

6. To serve, turn on the oven broiler. Ladle the soup into ovenproof bowls. Place 1 or 2 pieces of the croutons on top of each serving of soup, depending on the size of the bowl.

7. Place a thick slice of cheese on top of each bowl, then place the bowls on a baking sheet and broil just long enough for the cheese to become melted, bubbly and slightly toasted.

8. Serve immediately.

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