French Onion Soup
French Onion Soup is a timeless, soul-warming dish featuring slowly caramelized onions, rich broth, toasted bread, and melted Gruyère cheese. Perfect for cozy evenings, family dinners, or as a luxurious starter, it’s indulgent, hearty, and full of flavor.
Ingredients
- Core Ingredients
- 2 –3 large yellow or sweet onions thinly sliced
- 2 –3 tbsp butter
- 1 –2 tbsp olive oil optional
- 4 –6 cups beef or vegetable broth
- Baguette slices or crusty bread
- 1½ cups shredded Gruyère or Swiss cheese
- Seasonings
- Salt and freshly ground black pepper
- 1 –2 sprigs fresh thyme or ½ tsp dried thyme
- 1 bay leaf
- 1 –2 garlic cloves optional
- Optional Garnishes
- Fresh parsley or chives
- Extra cheese for topping
Instructions
- Caramelize the Onions
- Melt butter in a large, heavy-bottomed pot over medium heat.
- Add onions and cook slowly, stirring occasionally, until golden brown and caramelized (30–45 minutes).
- Make the Broth
- Add broth to the caramelized onions.
- Stir in thyme, bay leaf, and optional garlic.
- Simmer gently for 20–30 minutes to develop flavor.
- Assemble the Soup
- Preheat broiler to high.
- Place toasted baguette slices in oven-safe bowls.
- Ladle hot soup over the bread.
- Sprinkle shredded Gruyère on top.
- Broil until cheese is bubbly and golden (3–5 minutes).
- Serve
- Garnish with fresh herbs and serve immediately.
- Pair with a light salad or roasted vegetables for a complete meal.
Notes
- Slow caramelization of onions creates natural sweetness.
- Use day-old baguette slices—they hold up better under the cheese.
- Add cheese off the heat to avoid separation.
- Watch closely under the broiler; cheese browns quickly.