Onion soup is a timeless comfort dish made by slowly caramelizing onions and simmering them in a flavorful broth. Itโs simple, budget-friendly, and packed with deep, savory flavor, perfect for cozy dinners or light meals. Traditionally rooted in French cuisine, this soup transforms humble ingredients into something truly satisfying.
๐ Ingredients
- 2 tablespoons butter
- 4 medium onions (thinly sliced)
- A pinch of salt
- 2 tablespoons all-purpose flour
- ยฝ cup dry white wine (optional but recommended)
- 1 quart (4 cups) beef broth (or chicken/vegetable broth)
- โ teaspoon black pepper
- ยผ teaspoon dried thyme
๐ Optional (for serving): toasted bread, grated cheese
These ingredients are commonly used to build a rich onion soup with caramelized depth and balanced seasoning.
Also Read: Chicken Parm Recipes
๐ฉโ๐ณ Step by Step Instructions
1. Caramelize the Onions
Heat butter in a large pot over medium heat. Add sliced onions and a pinch of salt. Cook slowly, stirring often, until the onions turn golden brown and soft (about 15โ20 minutes).
๐ This step is crucial, it develops the soupโs signature flavor.
2. Add Flour
Sprinkle flour over the onions and stir well for about 1 minute until slightly browned. This helps thicken the soup.
3. Deglaze with Wine
Pour in the white wine and stir, scraping the bottom of the pan. Let it cook for 2 minutes until most of the liquid evaporates.
4. Add Broth & Seasonings
Add the broth, black pepper, and thyme. Bring everything to a boil.
5. Simmer the Soup
Reduce heat and let it simmer uncovered for 15โ20 minutes until slightly thickened and flavorful.
6. Serve
Serve hot as is, or top with toasted bread and cheese for a classic French-style finish.
๐ Slow cooking and simmering enhance sweetness and depth in the onions.
Also Read: Overnight Oatmeal Recipe
๐ฒ Nutritional Information (Per Serving โ Approx.)
- Calories: ~175 kcal
- Carbohydrates: ~15โ20 g
- Protein: ~3โ5 g
- Fat: ~8โ10 g
- Fiber: ~2โ3 g
Values vary depending on ingredients like cheese or bread.
Also Read: Chicken Buffalo Chicken Dip Recipe
๐ฝ๏ธ Tips for Best Results
- Use yellow onions for the best balance of sweetness and flavor.
- Cook onions slowly, rushing this step reduces flavor depth.
- Swap beef broth with chicken or vegetable broth for a lighter version.
- Add cheese and toasted bread for a classic French onion soup experience.

