How to Cook and Season Outback Steakhouse Walkabout Soup

A good creamy onion soup should taste rich without feeling heavy, sweet without tasting sugary, and savory enough that one spoonful makes the next one automatic. That balance is what people remember about Outback Steakhouse Walkabout Soup: soft onions, a smooth dairy base, mellow cheese, and simple seasoning that lets the onion flavor lead.

This homemade version is an inspired copycat, not an official restaurant recipe. The good news is that the method is simple. The real skill is in cooking the onions long enough, using enough salt at the right time, and keeping the heat gentle once the dairy goes in.

A creamy onion soup should look smooth, pale, and full of tender onion.

What gives this soup its signature flavor

Walkabout-style onion soup is different from French onion soup. It is not dark, brothy, or topped with a thick cap of melted Gruyere. It is pale, creamy, and mild, with a soft onion sweetness running through the whole bowl.

The flavor comes from four main pieces.

Sweet yellow onions

Yellow onions work best because they become sweet and gentle as they cook. White onions can taste sharper. Red onions can change the color of the soup and bring a fruitier flavor that does not quite fit.

Butter

Butter softens the onions and adds a rounded dairy flavor before the cream or cheese ever enters the pot. It also helps carry the seasoning through the soup.

A light roux

A roux is just fat and flour cooked together. In this soup, it thickens the broth so the finished texture feels creamy instead of watery. The trick is to cook it briefly, not brown it.

Chicken broth, cream, and cheese

Chicken broth gives the soup a savory base. Cream or half-and-half adds body. A small amount of processed cheese, such as American cheese or Velveeta-style cheese, melts smoothly and gives that familiar restaurant-style texture.

If processed cheese is not your thing, use mild cheddar with a little cream cheese. The texture will be slightly less silky, but the flavor will still be good.

Ingredients for a creamy copycat soup

This recipe makes about 6 servings.

Main ingredients

• 4 tablespoons unsalted butter

• 3 large yellow onions, thinly sliced

• 1 teaspoon kosher salt, plus more to taste

• 1/4 teaspoon sugar

• 1/4 cup all-purpose flour

• 4 cups low-sodium chicken broth

• 1 cup half-and-half

• 1/2 cup heavy cream

• 6 ounces American cheese or processed cheese, cubed

• 1/2 cup shredded mild cheddar cheese

  
  

Seasoning

• 1/2 teaspoon white pepper

• 1/4 teaspoon black pepper

• 1/4 teaspoon garlic powder

• 1/8 teaspoon paprika

• Pinch of cayenne, optional

  
  

For serving

• Chopped parsley

• Extra black pepper

• Croutons or warm bread

  
  

Use low-sodium broth if possible. Cheese adds salt, and the soup reduces a little as it cooks. Starting with low-sodium broth gives more control.

The sugar is not there to make the soup sweet. It helps the onions taste rounder and supports browning without pushing them into deep caramelized territory.

Cook the onions slowly and season in layers

The onions make or break this soup. If they stay crunchy, the soup tastes unfinished. If they brown too deeply, the flavor shifts toward French onion soup. Aim for soft, pale golden onions with a sweet aroma.

1. Melt the butter

   
   

   Place a heavy pot or Dutch oven over medium heat. Add the butter and let it melt until foamy.

   
   

2. Add the onions, salt, and sugar

   
   

   Stir in the sliced onions, 1 teaspoon kosher salt, and 1/4 teaspoon sugar. The salt pulls moisture from the onions, which helps them soften evenly.

   
   

3. Cook until tender

   
   

   Cook for 18 to 25 minutes, stirring often. Lower the heat if the onions start browning too quickly. They should become very soft and lightly golden around the edges.

   
   

4. Add the flour

   
   

   Sprinkle the flour over the onions. Stir well so the flour coats the onions and absorbs the butter. Cook for 2 minutes. This removes the raw flour taste.

   
   

5. Pour in the broth slowly

   
   

   Add about 1 cup of broth while stirring. Scrape the bottom of the pot to release any stuck bits. Once the mixture looks smooth, add the rest of the broth.

   
   

6. Simmer gently

   
   

   Bring the soup to a low simmer. Cook for 10 to 12 minutes, stirring now and then. The soup should thicken slightly.

   
   

7. Add dairy and cheese

   
   

   Lower the heat. Stir in the half-and-half and heavy cream. Add the cubed cheese and mild cheddar a handful at a time, stirring until melted.

   
   

8. Season and rest

   
   

   Add white pepper, black pepper, garlic powder, paprika, and cayenne if using. Turn off the heat and let the soup rest for 5 minutes before tasting again.

   
   

That rest matters. Cheese, broth, and onions need a few minutes to settle into one flavor. Taste after resting, then adjust the salt and pepper.

The onion stage sets the flavor for the whole pot.

How to season Outback-style onion soup well

Seasoning creamy soup can be tricky. Fat softens flavors, so a soup that tastes salty enough before the cream may taste flat after the dairy goes in. That is why this recipe seasons in layers.

Start with salt on the onions. Add the spices near the end. Then taste after the cheese melts and the soup rests.

Use white pepper for the classic creamy soup taste

White pepper has a softer, earthier flavor than black pepper. It blends into pale soups without leaving dark flecks everywhere. Black pepper still helps at the end, but white pepper should carry most of the pepper flavor.

If white pepper tastes too strong, use half the amount and increase black pepper slightly.

Keep garlic in the background

Garlic powder works better than fresh garlic here. Fresh garlic can taste sharp in a mild cream soup, especially if it browns. Garlic powder blends into the base and adds savory depth without taking over.

Use only 1/4 teaspoon at first. Add more only after tasting.

Add paprika for warmth, not smokiness

A little paprika gives the soup a warmer color and a gentle sweetness. Use regular sweet paprika. Smoked paprika can overpower the soft onion and cheese flavors.

Salt last, after the cheese

Cheese varies a lot in salt level. Some American cheese slices are quite salty. Some deli-style versions are milder. The same goes for broth.

Taste the finished soup before adding more salt. If it tastes flat but already salty, add a tiny splash of cream or a pinch of sugar instead of more salt. If it tastes rich but dull, add a pinch of salt and a little black pepper.

If the soup tastes	Try this fix
Flat	Add a pinch of salt and a little white pepper
Too salty	Stir in more cream or unsalted broth
Too sweet	Add black pepper and a small splash of broth
Too thick	Thin with warm broth or half-and-half
Too thin	Simmer gently for a few minutes or add more cheese
Too sharp	Cook a few minutes longer on low heat

The best version of Outback Steakhouse Walkabout Soup has a gentle savory finish. It should not taste aggressively cheesy, peppery, or garlicky.

Texture tips that make the soup taste restaurant-style

Cream soups need gentle heat. Boiling after adding dairy can make the soup grainy or greasy. Keep the pot at a low simmer before the dairy goes in, then lower the heat before adding cheese.

Slice the onions thinly

Thin onions melt into the broth better. Thick onion slices can feel stringy, especially in a creamy soup. A sharp knife works fine, but a mandoline gives even slices if used carefully.

Do not rush the roux

Once the flour goes in, stir for about 2 minutes. If the flour is undercooked, the soup can taste pasty. If the flour browns too much, the soup turns darker and nuttier than intended.

Add cheese off direct high heat

Cheese melts best when the soup is hot but not boiling. Lower the burner or move the pot off the heat for a minute before stirring in the cheese.

Blend only if needed

This soup should have visible tender onions, but the base should be smooth. If the texture feels uneven, blend one or two cups of soup and stir it back in. Do not blend the whole pot unless a fully smooth soup is the goal.

An immersion blender works well for a quick texture fix. Use short pulses so the onions do not disappear completely.

How to serve, store, and reheat it

This soup is rich, so simple sides work best. Serve it with a green salad, roasted vegetables, or warm bread. Croutons add crunch, but they are optional.

For a steakhouse-style meal at home, pair the soup with:

• Grilled steak or roasted chicken

• Baked potatoes

• Steamed broccoli

• A crisp wedge salad

• Garlic toast

  
  

Storing leftovers

Let the soup cool, then store it in an airtight container in the refrigerator for up to 3 to 4 days. Cream soups do not always freeze perfectly because dairy can separate when thawed. If freezing is needed, freeze before adding the cream and cheese, then add them during reheating.

Reheating without splitting

Reheat over low heat on the stove. Stir often and do not boil. If the soup looks too thick, add a splash of broth, half-and-half, or milk.

The microwave works for single servings. Heat in short bursts, stirring between each one. Stop when the soup is hot, not bubbling hard.

FAQ

Can I make this soup without processed cheese?

Yes. Use mild cheddar plus 2 ounces of cream cheese for a smoother texture. The flavor will be less like a restaurant-style copycat, but still creamy and satisfying.

Can I use beef broth instead of chicken broth?

You can, but the flavor will be deeper and darker. Chicken broth keeps the soup lighter and closer to the creamy onion style people usually expect from Walkabout-style soup.

Why did my soup turn grainy?

The heat was likely too high after the dairy or cheese went in. Keep the soup below a boil, add cheese slowly, and stir until each addition melts before adding more.

Can I make it vegetarian?

Yes. Use vegetable broth instead of chicken broth. Choose a mild broth so it does not overpower the onions and cream.

What is the best onion for this soup?

Yellow onions are the best choice. They soften well, turn sweet as they cook, and keep the flavor balanced.

A final spoonful

The key to this soup is patience with the onions and restraint with the seasoning. Cook the onions until soft, build a light roux, add dairy gently, and taste after the cheese has melted. That is how a simple pot of onions, broth, and cream turns into a cozy bowl with the same comforting spirit as the steakhouse favorite.