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Lazy French Onion Soup – Easy 1-Pot Recipe With Rich Flavor

Bowl of lazy French onion soup with caramelized onions, Gruyère, and toasted bread

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This lazy French onion soup brings bold, rich flavor using a simple oven method—no constant stirring required.

Ingredients

Scale

3 yellow onions, thinly sliced

2 tablespoons olive oil

3 thyme sprigs, plus leaves for garnish

1/4 cup dry sherry

6 cups beef broth

1 tablespoon Worcestershire sauce

1/2 teaspoon freshly ground black pepper

1/2 teaspoon kosher salt

1 bay leaf

2 teaspoons apple cider vinegar

12 slices French bread, toasted

8 ounces Gruyère cheese, shredded

Instructions

1. Preheat oven to 425°F.

2. In a Dutch oven, combine onions, oil, and thyme sprigs.

3. Bake covered for 40 minutes, stirring once halfway.

4. Uncover and continue baking for 30 minutes, stirring occasionally.

5. Remove from oven; stir in sherry and cook 3 minutes.

6. Add broth, Worcestershire, salt, pepper, bay leaf; simmer 15 minutes.

7. Remove from heat, stir in cider vinegar; discard thyme and bay leaf.

8. Preheat broiler. Ladle soup into 6 bowls.

9. Top each with bread and Gruyère.

10. Broil until bubbly and golden, 3–5 minutes.

11. Garnish with thyme leaves and serve hot.

Notes

Use vegetable broth for a vegetarian version.

Dry white wine can substitute sherry.

Prep bread in advance for easier serving.

Nutrition