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Outback Steakhouse Walkabout Onion Soup

Outback Steakhouse Walkabout Onion Soup

Outback Steakhouse Walkabout Onion Soup is a rich, comforting soup featuring deeply caramelized yellow onions simmered in a savory beef broth, topped with butter-toasted bread and melted mozzarella cheese. This hearty soup offers a perfect balance of sweet, savory, and salty flavors with a smooth texture, delivering restaurant-quality taste that can be easily made at home and customized to suit dietary preferences.

Ingredients

Scale

Soup Base

  • 4 large yellow onions, thinly sliced
  • 4 tablespoons butter
  • 2 tablespoons all-purpose flour (or cornstarch for gluten-free)
  • 6 cups beef broth (or vegetable broth for vegetarian)
  • 2 teaspoons Worcestershire sauce
  • 2 cloves garlic, minced
  • Salt and freshly ground black pepper, to taste

Toppings

  • 4 slices buttered bread, toasted (use gluten-free bread if needed)
  • 1 1/2 cups shredded mozzarella cheese (or Gruyère, Swiss, provolone)

Instructions

  1. Caramelize the Onions: Melt butter in a large skillet over medium heat. Add the thinly sliced yellow onions and cook slowly, stirring frequently, until they are deeply golden brown and sweetly caramelized, about 30 to 40 minutes. Patience is key to unlock rich flavor.
  2. Prepare the Broth Base: Sprinkle the flour over the caramelized onions and stir to coat evenly. Cook for another minute to eliminate any raw flour taste. Gradually whisk in the beef broth to avoid lumps. Add Worcestershire sauce, minced garlic, salt, and pepper, then bring the mixture to a gentle simmer.
  3. Simmer and Blend Flavors: Let the soup gently simmer for 20 to 30 minutes, stirring occasionally to meld the flavors and thicken the broth to a nice consistency.
  4. Toast the Bread: Slice bread and toast it lightly in butter until golden and crispy. This provides a sturdy and flavorful base for the cheese topping.
  5. Assemble and Broil: Ladle the hot soup into oven-safe bowls. Place one slice of toasted buttered bread on top of each bowl, then generously cover with shredded mozzarella cheese. Broil under high heat for 2 to 4 minutes until the cheese is bubbly and golden brown. Watch carefully to prevent burning.

Notes

  • Take your time caramelizing onions for deep flavor development; do not rush this step.
  • Use a quality beef broth or homemade stock to enhance soup richness.
  • Slice onions uniformly thin for even caramelization and a silky texture.
  • Pre-warm the serving bowls to keep the soup hot longer.
  • Broil carefully and watch closely to avoid burning the cheese or bread.

Nutrition

Keywords: onion soup, Outback Steakhouse, Walkabout Onion Soup, caramelized onions, beef broth soup, cheesy soup, comfort food, appetizer