Costco French Onion Soup

Costco French Onion Soup is a popular choice for many shoppers. It is known for its rich flavor and convenience. This soup is a favorite among those who enjoy classic comfort food. It is easy to prepare and tastes like it was made in a restaurant. Many people love it for its hearty and satisfying qualities.

The soup features a delicious blend of caramelized onions, savory broth, and melted cheese. It comes with a pack of croutons for added texture. The preparation is simple. You just need to heat it on the stove or in the microwave. It is perfect for busy days or when you want a quick, tasty meal. Costco French Onion Soup is a great option for families or anyone who loves a warm, flavorful dish. It offers both quality and value, making it a must-try for soup lovers.

About Costco French Onion Soup

Costco French Onion Soup is a delicious and convenient option for anyone who loves a warm, comforting meal. This soup has become a favorite for many shoppers because of its rich flavor and easy preparation. It’s perfect for busy days when you want something tasty without spending hours in the kitchen. Whether you’re cooking for yourself or serving a family, this soup is a great choice.

The soup is made with caramelized onions, which give it a sweet and savory taste. The broth is rich and flavorful, making every spoonful satisfying. It also comes with a pack of croutons, which add a nice crunch when sprinkled on top. The best part is the melted cheese that stretches with every bite, just like the French onion soup you’d get at a restaurant. It’s a classic dish that feels special but is simple to make at home.

Preparing Costco French Onion Soup is very easy. You can heat it on the stove or in the microwave, depending on your preference. It takes just a few minutes to get it ready. This makes it a great option for lunch, dinner, or even a quick snack. The soup is also very filling, so it works well as a main dish or a side.

One of the best things about this soup is its value. Costco offers it in a large size, so you get a lot for your money. It’s a great way to enjoy a restaurant-quality meal without the high cost. If you love French onion soup or want to try it for the first time, Costco’s version is worth a try. It’s a tasty, convenient, and affordable option that will leave you feeling satisfied.

Ingredients

Costco’s French Onion Soup is a delicious and comforting dish. It has a rich, savory flavor with melted cheese on top. The ingredients used in this soup create a perfect balance of taste and texture. Here are the main ingredients:

For the Soup

4 large onions (thinly sliced)

3 tablespoons butter (or olive oil for vegan option)

1 tablespoon olive oil

1 teaspoon sugar

1 teaspoon salt

½ teaspoon black pepper

1 teaspoon garlic (minced)

6 cups vegetable broth (instead of beef broth)

½ cup white wine (optional)

1 tablespoon soy sauce (or tamari for a deeper flavor)

1 teaspoon dried thyme

1 bay leaf

For the Topping

1 small baguette (sliced)

1 cup shredded vegetarian cheese (Gruyère, Swiss, or a dairy-free alternative)

½ cup shredded Parmesan cheese (or a vegan substitute)

How to Make Costco French Onion Soup

Caramelize the Onions

1. Heat a large Kadai or Pan on medium heat.

2. Add butter and olive oil. Let the butter melt.

3. Add the sliced onions. Stir well.

4. Sprinkle sugar and salt over the onions. This helps them caramelize faster.

5. Cook for 30–40 minutes. Stir occasionally. The onions should turn golden brown.

6. Add minced garlic. Cook for another 1–2 minutes.

Make the Soup Base

7. Pour in the white wine (if using). Stir well. Let it cook for 2 minutes.

8. Add the beef broth, Worcestershire sauce, thyme, bay leaf, and black pepper.

9. Bring the soup to a boil. Then reduce the heat to low.

10. Cover and let it simmer for 20–30 minutes. This helps the flavors mix.

11. Remove the bay leaf before serving.

Prepare the Bread and Cheese Topping

12. Preheat the oven to 375°F (190°C).

13. Place the baguette slices on a baking sheet.

14. Toast them in the oven for 5 minutes until they are crispy.

Assemble and Serve

15. Pour the hot soup into oven-safe bowls.

16. Next, place toasted baguette slices on top of each bowl.

17. Sprinkle Gruyère and Parmesan cheese over the bread.

18. You place the bowl under the broiler for 2-3 minutes. The cheese should melt and turn golden.

19. Remove carefully and serve hot.

Serving Suggestions

Top with fresh herbs or extra cheese for added flavor.

Serve with warm crusty bread or a baguette for dipping.

Pair with a light green salad for balance.

Try serving in a bread bowl for a fun twist.

Add a slice of Swiss or Gruyère and broil for a cheesy crust.

Enjoy with a glass of white or red wine.

Add grilled chicken or roasted beef for a heartier meal.

Garnish with caramelized onions for extra sweetness.

Expert Tips

Costco's French onion soup is already delicious, but you can make it even better with simple tricks. These expert tips will help you improve the taste, texture, and presentation.

1. Use the oven for the best texture: The best way to cook this soup is in the oven. It makes the cheese golden and crispy and toasts the bread perfectly. If you have the time, always choose the oven over the microwave.

2. Add extra cheese for more flavor: If you like cheesy soup, add extra Swiss or Gruyere cheese before baking. This makes the soup even more delicious. The extra cheese will melt and create a gooey, satisfying texture.

3. Serve with fresh bread: The soup already has baguette slices, but serving it with fresh bread makes it even better. Try a warm, crusty baguette or garlic bread on the side. It's perfect for dipping into soup.

4. Garnish for a restaurant-style look: Adorn your soup with simple garnishes. Sprinkle chopped parsley or fresh oregano on top before serving. A small drizzle of olive oil can also add extra flavor and brightness.

5. Enhance the broth with wine or Worcestershire sauce: For more flavor, add a drop of red wine or Worcestershire sauce before reheating. This deepens the flavor and gives the soup a more authentic, homemade feel.

6. Use the broiler for an extra crispy top: If you like a crispy, bubbly cheese crust, broil the soup for 2-3 minutes after cooking. This gives it a golden brown crust, just like in French restaurants.

7. Let it rest before eating: The soup is very hot right after cooking. Let it rest for a few minutes before eating. This helps the flavors meld and prevents burning from the hot cheese.

8. Serve with side dishes for a complete meal: French onion soup pairs well with a fresh salad or roasted vegetables. For a hearty meal, serve it with grilled chicken or steak.

9. Store leftovers properly: If you have leftover soup, store it in an airtight container in the freezer. Reheat it in the oven for the best flavor and texture. Don't microwave leftovers, as the bread can get soggy.

10. Try different cheeses for new flavors: Swiss cheese is a classic, but you can experiment with other cheeses, too. Gruyere, provolone, or mozzarella work well, too. Each cheese has a slightly different flavor and texture.

Variations on Costco French Onion Soup

Costco’s French Onion Soup is already tasty, but you can customize it in different ways. These variations add new flavors, textures, and ingredients to make the soup even better.

1. Spicy French Onion Soup: After that, add a pinch of red pepper flakes or a few drops of hot sauce. This gives the soup a little kick. For a smoky flavor, try chipotle powder.

2. Creamy French Onion Soup: Stir in a little heavy cream or half-and-half before heating. This makes the broth richer and smoother. You can also add a spoonful of sour cream before serving.

3. Extra Cheesy French Onion Soup: If you love cheese, add more before baking. Use Gruyère, mozzarella, or provolone for a rich, gooey texture. You can sprinkle Parmesan cheese on top for a crunchy texture.

4. Mushroom French Onion Soup: Add sautéed mushrooms for an extra-savory flavor. Cremini, shiitake, or portobello mushrooms work well. They blend perfectly with the rich broth.

5. Red Wine French Onion Soup: For a deeper taste, add a splash of red wine to the broth. Let it simmer before baking. This enhances the classic French flavors.

6. Garlic Butter French Onion Soup: Melt butter with minced garlic and brush it on the bread before baking. This adds a deep, savory taste. You can also mix roasted garlic into the soup for extra flavor.

7. Meaty French Onion Soup: For a heartier dish, add cooked beef, shredded chicken, or crispy bacon. These proteins make the soup more filling and delicious.

FAQs

Is Costco French onion soup pre-cooked?

Yes, it comes fully cooked and frozen. You only need to reheat it before eating.

What is the best way to cook Costco French onion soup?

The best way is to bake it in the oven at 400°F (200°C) for 40-45 minutes. This makes the cheese golden and crispy. You can also microwave it to cook it faster.

Does Costco French onion soup contain real cheese?

Yes, it contains real Swiss and provolone cheese. You can add more cheese for extra flavor.

Can I store leftover Costco French onion soup?

Yes, you can freeze leftovers. To reheat it, bake it in the oven for the best texture. Do not microwave leftovers, as the bread can get soggy.

Is Costco French onion soup vegetarian?

No, it contains beef broth. If you need a vegetarian version, you can try making your own with vegetable broth and dairy-free cheese.

What can I serve with Costco French onion soup?

You can serve it with a fresh salad, roasted vegetables, or a grilled sandwich. A warm baguette is also a great side dish for dipping.

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