Rich, comforting French onion soup made with slowly caramelized onions, savory beef broth, crispy baguette slices, and melted Gruyère cheese.
Ingredients
4 large yellow onions, thinly sliced
3 tablespoons unsalted butter
1 tablespoon olive oil
3 garlic cloves, minced
1 teaspoon sugar (optional)
½ cup dry white wine (optional)
6 cups beef broth
1 teaspoon fresh thyme
1 bay leaf
Salt and black pepper, to taste
1 baguette, sliced
1½ cups grated Gruyère cheese
Instructions
1. Caramelize the onions: Melt butter with olive oil in a large pot over medium-low heat. Add onions and cook for 35–45 minutes, stirring regularly, until deeply golden brown.
2. Add flavor: Stir in garlic and sugar. Cook for 1–2 minutes until fragrant.
3. Deglaze: Pour in white wine and scrape the bottom of the pot to release the flavorful browned bits. Simmer for 3 minutes.
4. Simmer the soup: Add beef broth, thyme, bay leaf, salt, and pepper. Simmer gently for 20–25 minutes.
5. Toast the bread: Place baguette slices on a baking sheet and toast until golden and crispy.
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