Here’s a classic French Onion Soup recipe with deeply caramelized onions, rich broth, and gooey melted cheese on toasted bread.
🧅 French Onion Soup (Classic Recipe)
⭐ Ingredients
- 4 large yellow onions, thinly sliced
- 3 tbsp butter
- 1 tbsp olive oil
- 2 cloves garlic, minced
- 1 tbsp flour (optional, for slight thickness)
- ½ cup dry white wine (optional but recommended)
- 4 cups beef broth (or vegetable broth)
- 1 tsp sugar (helps caramelize onions)
- Salt and black pepper to taste
- 1 baguette, sliced
- 1–2 cups grated Gruyère or mozzarella cheese
- Fresh thyme (optional)
👩🍳 Instructions
1️⃣ Caramelize the onions (most important step)
- Heat butter and olive oil in a large pot over medium heat.
- Add sliced onions, sugar, and a pinch of salt.
- Cook slowly for 30–40 minutes, stirring often, until deep golden brown and soft.
2️⃣ Add garlic and flour
- Stir in garlic and cook 1 minute.
- Add flour (if using) and cook another minute.
3️⃣ Deglaze and simmer
- Pour in white wine and scrape the bottom of the pot.
- Add broth, pepper, and thyme.
- Simmer uncovered for 15–20 minutes.
4️⃣ Toast the bread
- Toast baguette slices in the oven until crisp.
5️⃣ Assemble and melt cheese
- Ladle soup into oven-safe bowls.
- Place toasted bread on top and cover with cheese.
- Broil 2–3 minutes until cheese melts and bubbles.
✅ Tips for Best Flavor
- Slow caramelizing = deeper flavor (don’t rush).
- Gruyère gives the most authentic taste, but mozzarella works too.
- Add a splash of balsamic vinegar for extra richness (optional).
If you want, I can also give you:
✅ restaurant-style French onion soup secrets
✅ slow cooker version
✅ no-wine version
✅ Moroccan-style twist
Just tell me 🙂