Arby's Burger Sauce Recipe: Copycat Creaminess With Hidden Horseradish Kick

This Arby's burger sauce recipe unlocks the restaurant's signature tangy-sweet creaminess with that signature horseradish bite you crave. 💛 The secret lies in balancing ketchup, mayo, and vinegar while adding just the right amount of horseradish powder for that signature kick without overpowering the flavor.

I've tested multiple versions to perfect this copycat recipe that delivers the same creamy texture and bold taste you know from the fast-food chain.

The foundation of this sauce is simple yet effective: a combination of ketchup, mayonnaise, and apple cider vinegar creates that signature tangy-sweet balance. The addition of horseradish powder delivers that signature Arby's kick without making the sauce too spicy.

I've also included a touch of garlic powder and onion powder to add depth, and a pinch of black pepper to round out the flavors. This recipe is designed to be made ahead and stored in the refrigerator for up to two weeks.

What sets this sauce apart is its perfect balance of creaminess and tang, with that signature horseradish bite that makes it instantly recognizable.

The sauce is thick enough to cling to fries and burgers without being too heavy, and it has just the right amount of sweetness to complement the savory flavors of your favorite fast-food favorites. You'll be amazed at how closely this homemade version mimics the restaurant original.

This sauce works perfectly on burgers, fries, hot dogs, or even as a dipping sauce for chicken tenders. The recipe is designed to be made in large batches, so you can have it on hand whenever you're craving that familiar Arby's flavor.

Store it in an airtight container in the refrigerator for up to two weeks, or freeze for up to three months for even longer shelf life.

Ingredients for arby's burger sauce

Nine simple ingredients unlock that iconic Arby's sauce flavor you know and love.

The ketchup and mayo are your base—Heinz and Duke's are the brands I always grab at the store since they're consistent. Apple cider vinegar adds that signature tang, but white vinegar in a pinch works too. Horseradish powder is where the magic happens—start with 1 tsp and adjust to taste. I keep a small jar of Bragg apple cider vinegar in my pantry because it's reliable and affordable. The garlic and onion powders add depth, but if you're feeling fancy, fresh minced garlic and onion will take this to the next level (though it's not strictly necessary).

No horseradish powder? Fresh horseradish at half the amount works but can be overpowering, so go slow. Running low on ketchup? Tomato paste thinned with water is a decent swap, though it'll be slightly thicker. The sugar helps balance the tang, but if you're watching sweetness, you can reduce it to 1 tsp. For extra creaminess, add 1 tbsp of Greek yogurt or sour cream—it's a secret I picked up from testing this sauce over and over. The water is key for adjusting thickness, so have it ready to tweak as you go.

This sauce keeps beautifully in the fridge for up to 2 weeks in an airtight container. For longer storage, freeze it in ice cube trays—just thaw and stir before using. I always make a double batch because it disappears fast. It's perfect for dipping fries, topping burgers, or even drizzling over hot dogs. The flavors meld even better after sitting for a few hours, so make it ahead if you can—trust me on this.

Step-by-step instructions for Arby's burger sauce recipe

Here's how to recreate that iconic creamy, tangy sauce with a secret horseradish punch.

In a medium bowl, combine the 0.5 cup Ketchup and 0.5 cup Mayonnaise. Use a whisk to blend them thoroughly until smooth and fully incorporated. I like to work in a circular motion to ensure no streaks remain. This base creates the signature creamy texture that makes this sauce so addictive.

The ketchup provides the tangy foundation while the mayo adds richness. Don't skip this blending step—uneven mixing can result in a sauce that's either too thick or too thin. If you're using Duke's or Hellmann's mayo, you'll get that perfect velvety consistency Arby's is known for.

To the ketchup-mayo mixture, add the 1 tbsp Granulated Sugar, 0.5 tsp Garlic Powder, 0.5 tsp Onion Powder, 0.25 tsp Salt, and 0.25 tsp Black Pepper. Stir everything together until the sugar dissolves completely and all the dry ingredients are evenly distributed.

This is where the magic happens—the garlic and onion powders add subtle depth, while the sugar balances the tang. I always use freshly ground black pepper here for maximum flavor impact. The horseradish powder will come next, so don't add it yet—we want to build the flavors gradually for that authentic taste.

Now add the 1 tsp Horseradish Powder and 1 tbsp Apple Cider Vinegar to the bowl. Stir vigorously for about 30 seconds to fully incorporate the horseradish. This is the secret ingredient that gives Arby's sauce its distinctive kick—don't skip it! The vinegar brightens everything up and cuts through the richness.

Here's the thing—horseradish powder can be potent. If you're sensitive to spice, you might want to start with ½ tsp and adjust to taste. The vinegar should make the sauce look slightly shinier and more cohesive. If it seems too thick at this point, we'll fix that in the next step.

Add the 1 tbsp Water one teaspoon at a time while stirring continuously. You want the sauce to be smooth and pourable but still cling to a spoon. It should coat the back of a spoon without being too runny. This is where the sauce gets its signature dipping consistency.

The right thickness is crucial—too thick and it won't coat burgers properly; too thin and it'll pool. I usually need about 1 tablespoon of water, but if your ingredients are particularly dry, you might need an extra ½ teaspoon. Taste as you go and adjust until you get that perfect balance of creaminess and tang.

Let the sauce sit at room temperature for 10-15 minutes. This resting period allows all the flavors to meld together beautifully. Give it a final taste and adjust the seasoning if needed—add a pinch more salt if it needs more depth, or a tiny bit more vinegar if it's too sweet.

Now you're ready to serve! This sauce keeps well in the refrigerator for up to 1 week, making it perfect for meal prep. The flavors actually improve as it sits, developing that complex, restaurant-quality taste. Use it on burgers, fries, hot dogs, or even as a dip—it's incredibly versatile!

Flavor customization for this arby's burger sauce

Mild & Sweet Version

Skip the horseradish powder entirely and reduce the apple cider vinegar to ½ tablespoon for a gentler, kid-friendly sauce. Add ½ teaspoon more sugar to balance the reduced acidity.

This version works perfectly for picky eaters or when you want to highlight the creamy mayo-ketchup base. The texture remains identical, just without that signature kick. 💛

Extra Spicy Kick

Double the horseradish powder to 2 teaspoons and add ¼ teaspoon cayenne pepper for serious heat lovers. For an extra layer of complexity, stir in ½ teaspoon smoked paprika after resting. This version rivals Arby's "Spicy" sauce but with homemade authenticity. Start with small batches—this sauce disappears fast!

Herb-Infused Variation

Replace the onion and garlic powders with 1 teaspoon fresh dill and ½ teaspoon dried basil for a bright, herbaceous twist. Add ½ teaspoon lemon zest to complement the vinegar. This works beautifully on chicken tenders or seafood dishes. The herbs add freshness while maintaining the signature tangy-sweet balance.

Smoky BBQ Fusion

Swap 2 tablespoons of the ketchup for 2 tablespoons BBQ sauce (I recommend Sweet Baby Ray's Original). Add ½ teaspoon smoked salt and ¼ teaspoon chipotle powder for a smoky depth.