Walkabout Onion Soup Recipe (Outback-Style)
This Walkabout onion soup recipe is made by slowly sautéing sweet onions, simmering them in chicken broth, and thickening the soup with a simple white sauce and melty cheese. The ingredients are straightforward and the how-to steps are short, so you can get a cozy, restaurant-style bowl on the table without fuss.
Ingredients
1. For the soup
2. For the white sauce
3. For serving
4. White sauce (roux) ingredients
Step-by-Step Method
Soften the onions
Melt 2 tbsp butter in a large pot. Add the sliced onions and cook over medium-low heat, stirring now and then, until soft (about 15–20 minutes).
Build the broth base
Pour in the chicken broth and add the bouillon cubes. Season with salt and pepper. Bring to a gentle boil, then lower the heat and simmer for 35–40 minutes.
Make the white sauce
In a small saucepan, melt 3 tbsp butter. Stir in the flour and cook for 1–2 minutes. Whisk in the milk a little at a time until smooth; add salt and cook until lightly thickened.
Melt in the cheese
Add the melting cheese pieces to the soup and stir until fully melted.
Thicken the soup
Stir in the white sauce, starting with 1 1/2 cups. If you want it a bit thicker, add more until you reach about 1 3/4 cups.
Finish and serve
Warm the soup for 2–3 more minutes without boiling hard, then check the consistency. Ladle into bowls and top with shredded cheddar if you like; serve hot.

