Prepare the Onions:
In a large pot or Dutch oven, melt the butter over medium heat.
Add the thinly sliced onions and cook, stirring occasionally, until they are soft and caramelized, about 15-20 minutes. You want them golden brown but not burnt.
Make the Roux:
Sprinkle the flour over the onions and stir constantly for 2-3 minutes to form a roux. This will help thicken the soup.
Add Broth and Cream:
Gradually whisk in the chicken broth and water. Continue stirring until the mixture is smooth.
Add the heavy cream and bring the soup to a simmer, stirring occasionally.
Season the Soup:
Stir in the salt, black pepper, garlic powder, and Worcestershire sauce (if using). Let the soup simmer on low heat for another 10-15 minutes to allow the flavors to meld together.
Add the Cheddar Cheese:
Stir in the shredded cheddar cheese, making sure it melts completely into the soup for a creamy consistency.
Serve with Toppings:
Preheat your broiler. Ladle the soup into oven-safe bowls, top with shredded mozzarella or Gruyère cheese, and place the bowls under the broiler until the cheese is bubbly and golden brown.
Garnish and Serve:
Garnish with fresh parsley and serve hot. Pair it with crusty bread for dipping, and enjoy!
Prep Time:
10 minutes
Cook Time:
40 minutes
Total Time:
50 minutes
Nutrition (per serving):
Calories: 320
Fat: 25g
Carbohydrates: 15g
Protein: 10g
Fiber: 2g
Sugar: 6g
This Outback Steakhouse Walkabout Onion Soup recipe brings the rich, savory flavors of caramelized onions and cheese together for a creamy and satisfying meal. The depth of flavor makes it a comforting classic, perfect for lunch, dinner, or a delicious appetizer.