Copycat Steak ‘n Shake Cajun Seasoning (For Fries and Burgers)

If you’ve ever ordered Steak ‘n Shake’s Cajun fries or the Cajun Double Steakburger, you know that zesty, smoky, just-spicy-enough seasoning is the star of the show. The problem? The Cajun menu items come and go, and you can’t buy the Cajun blend in stores.

The good news is that this copycat Steak ‘n Shake Cajun seasoning takes just 5 minutes to make with spices you probably already have. It’s bold and savory with a gentle kick of heat, and it’s amazing sprinkled on hot fries, smashed burgers, chicken, popcorn, and roasted veggies.

Make a jar, keep it in your pantry, and you’ll have that Steak ‘n Shake Cajun flavor any time the craving hits.

What Is Steak ‘n Shake Cajun Seasoning?

Steak ‘n Shake uses its Cajun seasoning on two fan favorites: Cajun fries and the Cajun Double Steakburger. The burger features two steakburger patties, melted American cheese, and a creamy Cajun sauce on a toasted bun that’s dusted with Cajun seasoning. The Cajun menu is a limited-time offering that has returned several times over the years, and fans always seem to want it back.

Steak ‘n Shake doesn’t sell its Cajun blend or share the recipe, so this homemade version recreates that classic Cajun flavor: smoky paprika, garlic, onion, herbs, and a warm hit of cayenne pepper.

Why You’ll Love This Recipe

• It’s ready in 5 minutes. Just measure, stir, and store.
• It uses pantry staples. No special trips to the store, just everyday spices.
• You control the heat. Make it mild for the kids or extra spicy for the heat lovers.
• It’s cheaper than store-bought. A homemade jar costs a fraction of specialty spice blends.
• It’s fresher and more flavorful. You choose the spices, with no fillers or anti-caking agents.
• It’s so versatile. Use it on fries, burgers, chicken, shrimp, potatoes, popcorn, and more.

Ingredients You’ll Need

The exact measurements are in the recipe card below, but here’s what goes into this Cajun blend and why each spice matters.

• Paprika: The base of the blend, giving it that signature red color and mild, sweet pepper flavor.
• Smoked paprika: Adds a subtle smoky depth that makes it taste like it came off a hot griddle.
• Garlic powder and onion powder: The savory backbone of any good Cajun seasoning.
• Salt: Brings all the flavors together. Kosher salt works best, but fine salt works if you use a little less.
• Black pepper and white pepper: Black pepper adds a bold bite, while white pepper brings a sharper, lingering heat that’s classic in Cajun cooking.
• Cayenne pepper: The source of the kick. Use more or less depending on how spicy you like it.
• Dried oregano and dried thyme: These herbs give the blend its classic Cajun flavor.
• Sugar (optional): A small pinch balances the heat and helps the seasoning caramelize on burgers. It’s especially good on fries.

How to Make Steak ‘n Shake Cajun Seasoning

Step 1: Measure the spices. Add all the spices to a small bowl.

Step 2: Mix. Whisk or stir until everything is evenly blended with no clumps. If your dried herbs are large, crush them between your fingers first for a finer texture.

Step 3: Store. Transfer the seasoning to an airtight jar or spice shaker and store it in a cool, dry place.

That’s it! Your homemade Cajun seasoning is ready to use.

How to Make Steak ‘n Shake Cajun Fries

Cajun fries are the easiest way to use this seasoning, and they taste just like the restaurant version.

Cook a batch of thin, crispy fries. My Air Fryer Ore-Ida Extra Crispy Fast Food Fries are perfect for this. As soon as the fries come out of the air fryer, transfer them to a large bowl, sprinkle with 1 to 2 teaspoons of Cajun seasoning per batch, and toss to coat. Seasoning the fries while they’re hot helps the spices stick.

For extra flavor, lightly mist the fries with oil before tossing so even more seasoning clings to every fry.

How to Use It on Burgers

This seasoning is what gives the Cajun Double Steakburger its zesty flavor. Here’s how to use it:

• On the patties: Make my Copycat Steak ‘n Shake Burger (Original Double Steakburger), but swap the salt and pepper for a generous sprinkle of Cajun seasoning right after you smash the patties.
• On the bun: Just like Steak ‘n Shake, lightly dust the top of the buttered, toasted bun with Cajun seasoning for an extra layer of flavor.
• In the sauce: Stir a teaspoon into mayonnaise for a quick, creamy Cajun sauce.

More Ways to Use Cajun Seasoning

• Chicken: Rub it on chicken breasts, wings, or tenders before air frying or grilling.
• Seafood: Sprinkle it on shrimp, salmon, or catfish.
• Potatoes: Toss it with roasted potatoes, potato wedges, or hash browns.
• Popcorn: Shake it over buttered popcorn for a spicy movie-night snack.
• Chili: Stir a teaspoon into a pot of Copycat Steak ‘n Shake Chili for a Cajun twist.
• Dips: Mix it into sour cream or ranch for a zesty dip for fries and veggies.
• Eggs: Sprinkle it on scrambled eggs or breakfast potatoes.

Tips for the Best Cajun Seasoning

• Use fresh spices. Ground spices lose flavor over time. If your paprika is more than a year old, replace it for the best color and flavor.
• Start mild. You can always add more cayenne later. Start with 1 teaspoon and adjust to taste.
• Crush the herbs. Rubbing dried oregano and thyme between your fingers releases their oils and helps them blend in.
• Make a big batch. Double or triple the recipe so you always have some on hand.
• Watch the salt. If you’re using the seasoning on already salted foods, like fries or deli meat, go easy or make a salt-free version.

Variations

• Mild (kid-friendly): Reduce the cayenne to ¼ teaspoon and skip the white pepper.
• Extra spicy: Increase the cayenne to 1 tablespoon and add ½ teaspoon of red pepper flakes.
• Salt-free: Leave out the salt and add it separately when cooking.
• Smoky: Increase the smoked paprika and reduce the regular paprika by the same amount.

How to Store Homemade Cajun Seasoning

Store the seasoning in an airtight jar or spice container in a cool, dry place away from heat and sunlight. It stays fresh for up to 6 months. Give the jar a good shake before each use, since the spices can settle over time.

Gift idea: Pour the seasoning into small spice jars, add a handwritten label, and give it to friends and family. It pairs perfectly with a bag of potatoes or a set of burger buns!

Frequently Asked Questions

What’s in Steak ‘n Shake Cajun seasoning? Steak ‘n Shake doesn’t share its exact recipe, but this copycat uses a classic Cajun blend of paprika, smoked paprika, garlic powder, onion powder, salt, black and white pepper, cayenne, oregano, and thyme.

Is Steak ‘n Shake Cajun seasoning spicy? It has a mild to medium kick. This homemade version lets you control the heat by adjusting the cayenne.

Is this the same as Steak ‘n Shake Fry ‘N Steakburger Seasoning? No. Steak ‘n Shake’s retail Fry ‘N Steakburger Seasoning is a savory seasoned salt, while the Cajun seasoning is spicier and more herb-forward.

What’s the difference between Cajun and Creole seasoning? They’re very similar. Cajun seasoning tends to be spicier and more pepper-forward, while Creole seasoning usually includes more herbs, like basil and parsley.

How much seasoning should I use on fries? Start with 1 to 2 teaspoons per batch of fries and add more to taste.

Does the Cajun seasoning go bad? It doesn’t spoil, but spices lose flavor over time. For the best taste, use it within 6 months.

More Steak ‘n Shake Copycat Recipes

• Copycat Steak ‘n Shake Burger (Original Double Steakburger): Thin, crispy-edged smash burgers with melty American cheese.
• Copycat Steak ‘n Shake Chili: Rich, hearty chili that’s perfect on its own or over spaghetti.
• Steak and Shake Frisco Patty Melts: Juicy beef and melted cheese on buttery toasted sourdough.
• Ninja Creami Steak ‘n Shake Birthday Cake Shake: Vanilla ice cream blended with frosted yellow cake and sprinkles.

More Cajun Recipes

• Popeyes Cajun Fries
• Copycat Five Guys Cajun Fries
• Copycat Wingstop Cajun Corn
• Zydeco Sauce

If you make this recipe, please leave a star rating and a comment below. Let me know what you sprinkled it on!