French Onion Soup is the timeless comfort food making a delicious comeback in 2025—thanks to its deep flavor, cozy warmth, and irresistible cheesy topping. This classic, with roots in French tradition, is winning hearts for its simple ingredients and rich, caramelized onions.
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 2, 4, or 6
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Ingredients (for 2 servings; double for 4, triple for 6)
– 2 large yellow onions, thinly sliced
– 2 tbsp butter
– 1 tbsp olive oil
– 2 cups beef or vegetable broth
– 1/4 cup dry white wine (optional)
– 2 sprigs fresh thyme (or 1/2 tsp dried)
– 1 bay leaf
– Salt & pepper to taste
– 2 slices French bread
– 1/2 cup grated Gruyère or Swiss cheese
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Caramelization & Soup Steps
1. In a heavy pot, melt butter and oil over medium-low. Add onions and a pinch of salt; cook slowly, stirring often, until deeply golden and caramelized—about 30 minutes.
2. Add wine (if using), scraping up browned bits. Stir in broth, thyme, bay leaf, salt, and pepper. Simmer for 15 minutes.
3. Toast bread slices until crisp.
4. Remove bay leaf. Ladle soup into oven-safe bowls, top each with bread and cheese.
5. Broil until cheese is bubbly and golden.
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Cheese, Broth & Lighter Tips
– Use Gruyère for classic flavor or try mozzarella for a lighter touch.
– Swap beef broth for vegetable broth for a vegetarian version.
– For less richness, use less cheese and whole-grain bread.
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French onion soup recipe, caramelized onions, classic comfort food 2025—warm up with this inviting, nostalgic favorite!