This hearty and comforting onion soup is perfect for chilly evenings. The rich flavor of caramelized onions, combined with melted Emmental cheese and toasted bread, creates a dish that's both satisfying and elegant. It's a recipe that brings back memories of cozy family dinners and is sure to become a favorite in your home.
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Peel the onions and slice them into thin rings.
In a large saucepan, melt the butter and add the olive oil. Gently sauté the onions over medium heat.
Season with salt and continue to cook the onions until they are golden brown.
Sprinkle the flour over the onions and stir well, cooking for an additional 3 minutes.
Add the hot broth and the grated cheese to the saucepan. Simmer over low heat for approximately 30 minutes.
Season with ground black pepper and adjust salt to taste.
In a separate pan, toast the slices of bread in a little olive oil until golden.
Divide the soup into individual oven-safe bowls or ramekins. Place a slice of toasted bread on top of each serving and sprinkle with a bit of the grated cheese.
Place the bowls under the broiler (grill) for a few moments, just until the cheese is melted and golden.
Serve immediately while very hot.
Use sweet onions for a more delicate flavor.
If you prefer a stronger cheese flavor, try Gruyère instead of Emmental.
Make sure to toast the bread well to prevent it from becoming soggy in the soup.
For a richer broth, use beef stock instead of vegetable broth.
Keep an eye on the broiler to avoid burning the cheese topping.
Can I use a different type of cheese?
Yes, Gruyère or Comté are excellent alternatives to Emmental for this recipe.
Can I make this soup ahead of time?
Yes, you can prepare the soup in advance and reheat it. Add the bread and cheese topping just before serving.
What type of bread works best?
A crusty baguette or sourdough bread is ideal for this recipe.
Can I make this gluten-free?
Yes, use gluten-free flour and bread to adapt the recipe for a gluten-free diet.
How do I store leftovers?
Store the soup in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove before serving.
