Indulge in a comforting bowl of French Onion Soup. Rich, savory, and topped with melted cheese, this easy soup recipe brings gourmet flavor to your kitchen.
Melt the butter in a 2-quart saucepan over medium heat. Add the onions, garlic, thyme, salt and pepper and cook until the onions are very soft and caramelized, about 25 minutes.
Add the wine, bring to a boil, reduce the heat and simmer until the wine has evaporated, about 5 minutes.
Sprinkle the flour over the onions and stir. Reduce the heat to medium-low and cook for 10 minutes, stirring occasionally so that the flour doesn't burn.
Stir in the chicken broth and bring the soup back to a simmer, cook for 10 minutes.
Taste and add additional salt, if necessary.
Heat the broiler. Place the slice of French bread on a baking sheet. Sprinkle the Gruyere cheese over the top and broil until bubbly and golden brown, 3-4 minutes.
Place the bread in a soup bowl and pour the soup over the top.
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Notes
Gruyere Cheese: For that quintessential French Onion Soup flavor, you can't go wrong with Gruyere. Its meltability and rich, smooth texture make it the top choice. For other cheese options, check out our Ingredient Notes.
Choosing the Right Broth: Traditional recipes call for beef broth, but a high-quality store-bought version is often elusive. Many tend to have a metallic tang. To guarantee a satisfying soup, opt for chicken broth instead.