Onion Soup
Here is an appetizing introduction to the recipe, ranging from 350-500 characters, written before any headings. Onion soup is a timeless classic that warms both the body and soul. With its rich flavors derived from slowly caramelized onions and a hearty broth, this dish is perfect for a cozy evening. Topped with melted cheese and served with crusty bread, it’s a delightful treat. Join us in this culinary adventure to create the perfect onion soup that will impress your family and friends!
Ingredients
Here is the list of ingredients.
- 4 large onions, thinly sliced
- 4 cups beef or vegetable broth
- 2 tablespoons butter
- 1 tablespoon olive oil
- 1 teaspoon sugar
- 1 tablespoon flour
- 1 cup grated Gruyère cheese
- Salt and pepper to taste
- Baguette slices for serving
- Fresh thyme for garnish
Servings and Cooking Time
This recipe makes 4 servings. Preparation time is approximately 15 minutes, and cooking time is about 45 minutes.
Nutritional Value
Each serving of onion soup contains approximately 250 calories, 10g of fat, 30g of carbohydrates, and 8g of protein. This is based on a serving size of 1 bowl and provides a hearty meal with essential nutrients.
Step-by-Step Cooking Process
- In a large pot, heat butter and olive oil over medium heat.
- Add the sliced onions and cook, stirring frequently, until they are soft and caramelized (about 25 minutes).
- Sprinkle the sugar over the onions to enhance caramelization.
- Once the onions are golden brown, stir in the flour and cook for 1 minute.
- Gradually add the broth, stirring to combine and dissolve any flour lumps.
- Bring the mixture to a simmer, then reduce the heat to low.
- Season with salt and pepper to taste, and let it simmer for 15 minutes.
- Preheat your oven to broil.
- Pour the soup into oven-safe bowls and top with baguette slices and Gruyère cheese.
- Place the bowls under the broiler until the cheese is bubbly and golden brown.
Alternative Ingredients
If you’re looking for alternatives, consider using vegetable broth for a vegetarian version. You can also substitute Gruyère cheese with Swiss or mozzarella cheese if preferred. For a twist, add a splash of white wine during the onion cooking process for added depth of flavor.
Serving and Pairings
Onion soup pairs wonderfully with crusty bread, a side salad, or a charcuterie board. It can also be served as an appetizer before a main course like steak or roasted chicken, enhancing your dining experience.
Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat on the stovetop over low heat until warmed through. While freezing is possible, it’s best to freeze the soup without the cheese and bread, adding them fresh upon reheating.
Cooking Mistakes
- Using high heat can burn the onions; always cook them slowly.
- Not seasoning the broth properly can lead to bland soup.
- Skipping the caramelization step will result in a less flavorful soup.
- Using stale bread can ruin the dish; always use fresh or toasted bread.
- Not allowing the soup to simmer long enough can affect the flavor.
Helpful Tips
- Use a mix of yellow and sweet onions for added depth.
- Caramelize onions in batches if your pot is small.
- Top with fresh herbs for a pop of color and flavor.
- Experiment with different cheeses for unique tastes.
FAQs
What type of onions are best for onion soup?
While yellow onions are the most common choice for onion soup due to their sweetness when caramelized, you can also use sweet onions for a milder flavor or red onions for a slightly different taste.
Can I make onion soup in advance?
Yes, onion soup can be made in advance. Just store it in the refrigerator and reheat when ready to serve. It often tastes even better the next day as the flavors meld.
Is onion soup gluten-free?
Traditional onion soup contains flour for thickening, making it not gluten-free. However, you can substitute with cornstarch or a gluten-free flour blend to accommodate dietary needs.
Can I use chicken broth instead of beef broth?
Absolutely! Chicken broth can be used as a lighter alternative, though it will slightly change the flavor. Vegetable broth is another great option for a vegetarian soup.
How do I store leftover onion soup?
Leftover onion soup should be stored in an airtight container in the refrigerator. It will keep well for up to 3 days. Reheat on the stovetop or microwave before serving.
Conclusion
Onion soup is a classic dish that exemplifies comfort food at its best. Its rich flavors and aromas are sure to make any meal feel special. Whether enjoyed as a starter or a main course, this soup offers warmth and satisfaction. Try this recipe today and savor the delightful experience of homemade onion soup!

Onion Soup
Ingredients
- 4 large onions thinly sliced
- 4 cups beef or vegetable broth
- 2 tablespoons butter
- 1 tablespoon olive oil
- 1 teaspoon sugar
- 1 tablespoon flour
- 1 cup grated Gruyère cheese
- Salt and pepper to taste
- Baguette slices for serving
- Fresh thyme for garnish
Instructions
- In a large pot, heat butter and olive oil over medium heat.
- Add the sliced onions and cook, stirring frequently, until they are soft and caramelized (about 25 minutes).
- Sprinkle the sugar over the onions to enhance caramelization.
- Once the onions are golden brown, stir in the flour and cook for 1 minute.
- Gradually add the broth, stirring to combine and dissolve any flour lumps.
- Bring the mixture to a simmer, then reduce the heat to low.
- Season with salt and pepper to taste, and let it simmer for 15 minutes.
- Preheat your oven to broil.
- Pour the soup into oven-safe bowls and top with baguette slices and Gruyère cheese.
- Place the bowls under the broiler until the cheese is bubbly and golden brown.