To cook Costco French onion soup, simply heat the soup on the stovetop or in the microwave, then top with toasted bread and cheese before broiling until golden and bubbly.
Start by removing the soup from its packaging. Pour it into a saucepan if you’re using the stovetop method. Heat over medium-low heat, stirring occasionally, until it’s hot.
If you prefer to use the microwave, transfer the soup to a microwave-safe bowl. Heat on high for 4-6 minutes, stirring halfway through. Just make sure it’s heated evenly.
While the soup is warming, prepare the toppings. Slice some crusty bread into thick pieces. Toast them until they’re golden brown on both sides.
Once the soup is ready, ladle it into oven-safe bowls or ramekins. Place a slice of toasted bread on top of each bowl.
Now comes the cheesy part! Sprinkle a generous amount of shredded Gruyère or mozzarella cheese over the bread.
Preheat your broiler. Place the bowls on a baking sheet and slide them under the broiler for 2-5 minutes. Keep a close eye on them to prevent burning.
When the cheese is melted and bubbly, remove them from the oven. Be careful, as the bowls will be very hot!
Serve immediately for a delicious and comforting meal. Enjoy the rich flavors!
Can I use a different type of cheese for Costco French onion soup?
Yes, you can use other cheeses like Swiss, cheddar, or even a blend. Just ensure it melts well.
How do I store leftover Costco French onion soup?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat before serving.
Can I freeze Costco French onion soup?
Yes, you can freeze it. Just make sure to leave out the bread and cheese, as they don’t freeze well.
What can I serve with Costco French onion soup?
It pairs well with a side salad, a light sandwich, or even some garlic bread for a complete meal.
Is Costco French onion soup vegetarian?
Check the packaging for specific ingredients, but many French onion soups are made with beef broth, which is not vegetarian.