Sauces & Condiments
Nothing transforms a simple burger like that signature Arby's horseradish sauce—creamy, tangy, and packed with just the right kick. I’ve recreated the exact balance of heat and richness that makes this sauce legendary, so you can bring that iconic flavor home without the fast-food price tag.
The secret lies in blending prepared horseradish with mayo and vinegar, then balancing it with sugar and spices to mimic that perfect commercial taste.
This sauce is surprisingly simple to make with just 5 ingredients you likely already have in your pantry. The key is using a high-quality prepared horseradish (not the mild kind) and letting the flavors meld for at least 30 minutes before serving.
That’s when the heat and tang really wake up, creating a sauce that’s bold enough to stand up to juicy burgers or crispy fries.
What you’ll end up with is a smooth, slightly spicy sauce that’s creamy yet bright—just like the real deal. It’s the perfect way to elevate any burger, sandwich, or even as a dip for veggies.
The best part? It keeps well in the fridge for up to a week, so you can make a big batch and have it ready whenever cravings hit.
Fair warning: this sauce is not for the faint of heart—it’s got real horseradish heat, but the creaminess balances it out beautifully. Trust me, once you try it, you’ll never go back to store-bought again. Let’s get mixing!
Ingredients for arby's horseradish sauce
Five pantry staples. One legendary sauce. Game-changer for burgers and fries.
| Ingredient | Amount | Notes |
|---|---|---|
| Prepared Horseradish 🌶️ | ½ cup | High-quality, not mild variety |
| Mayonnaise 🥛 | ½ cup | Kewpie or Hellmann's preferred |
| White Vinegar 💧 | 2 tbsp | Distilled vinegar works too |
| Granulated Sugar 🍚 | 1 tbsp | Balances the heat perfectly |
| Ground Black Pepper 🌶️ | ½ tsp | Freshly ground for best flavor |
| Salt 🧂 | ¼ tsp | Kosher or sea salt preferred |
| Water 💧 | 1 tbsp | Adjusts consistency if needed |
The horseradish is non-negotiable—grab the strongest jar you can find at the store. Trader Joe's and Whole Foods carry the best brands, but the regular grocery store stuff works too. Look for a deep red color with no separation at the bottom. That's your sign it's fresh and potent. The mayo matters too—Kewpie gives that authentic Arby's texture, but Hellmann's works in a pinch. If you're feeling fancy, add a pinch of cayenne pepper for extra kick, but the recipe's already got plenty of heat.
No horseradish? Hot sauce like Frank's RedHot can mimic the heat, but it won't taste the same. Vinegar substitute? Lemon juice works one-to-one. Sugar too sweet? Honey or maple syrup at half the amount adds depth without overpowering. The water is your secret weapon—add it one teaspoon at a time if the sauce feels too thick. Pro tip: Let it sit 30 minutes before tasting. That's when the flavors really wake up and the heat mellows into something magical.
This sauce keeps for up to 1 week in the fridge, sealed tight in a jar. I double the batch every time—one for burgers, one for fries. If it gets too thin after a few days, just stir in a little more mayo. Too thick? Add a splash of water. Freezes beautifully too, if you're planning ahead. Just give it a quick whisk when you thaw it. Trust me, once you make this, you'll never buy the bottled stuff again.
Why You'll Love This Recipe
- Five-Ingredient Magic: I swear, this is the kind of recipe where you’ll measure, stir, and forget you’re cooking—just like that. The prepared horseradish does all the work, and the mayo-vinegar-sugar mix comes together in three minutes flat. No peeling, no chopping, no stress.
- Kick That Flavor Up: That tangy horseradish heat cuts right through the creamy mayo, while the vinegar brightens it up—like a spicy, zesty hug for your taste buds. Honestly, the sugar balances it so well, you’ll want to drizzle it on everything (yes, even your eggs).
- Weeknight Secret Weapon: This sauce is my go-to for last-minute sliders, grilled chicken, or even deviled eggs. Between us, it’s the reason my family begs for "Arby’s night" at home—because this tastes just like the real deal, minus the drive-thru.
- Stores Like a Dream: Make a double batch and keep it in the fridge for up to two weeks. It’s cheap to whip up, stretches across multiple meals, and honestly? The leftovers taste better the next day—like a flavor bomb waiting to happen.
Step-by-step instructions for Arby's horseradish sauce recipe
Here's how to whip up this legendary sauce that brings bold heat to every bite.
Whisk Together the Base Ingredients
Start by combining the 0.5 cup mayonnaise and 0.5 cup prepared horseradish in a medium bowl. Use a whisk or fork to mix them thoroughly until smooth. The horseradish should be evenly distributed throughout the mayonnaise, creating a vibrant yellow-orange color. This is your flavor foundation—don't skip blending well here, as any lumps will make the sauce uneven in texture.
Next, add the 2 tablespoons white vinegar and 1 tablespoon granulated sugar. The vinegar brightens the flavors while the sugar balances the sharpness of the horseradish. Whisk continuously until everything is fully incorporated. You'll notice the mixture becomes slightly thicker as the sugar dissolves. This step is crucial for achieving that perfect balance of heat and tang that makes this sauce so addictive.
Season with Spices and Water
Now it's time to add the seasonings. Sprinkle in the 0.5 teaspoon ground black pepper and 0.25 teaspoon salt while continuing to whisk. The pepper adds depth, while the salt enhances all the flavors. Taste the mixture at this point—you should feel a nice balance of heat and saltiness, but not overwhelming spiciness yet.
Add the 1 tablespoon water and whisk again until completely smooth. The water helps adjust the consistency to a perfect spreadable texture. If the sauce seems too thick after mixing, add an extra splash of water—just ½ teaspoon at a time—until it reaches a smooth, dip-able consistency. This sauce should coat the back of a spoon easily without being runny.
Taste and Adjust for Perfect Balance
This is where the magic happens—taste testing! Take a small spoonful and really let the flavors develop in your mouth. You should notice the sharp kick of horseradish, the creamy richness of the mayonnaise, and the bright tang from the vinegar. If it's too spicy, add a pinch more sugar or a splash of water to mellow it out. If it needs more heat, add an extra ¼ teaspoon horseradish at a time until you reach that perfect balance.
For the ultimate flavor, let the sauce sit in the refrigerator for at least 30 minutes before serving. This allows all the flavors to meld together beautifully. The sauce will thicken slightly as it chills, so if you prefer it looser, give it a quick whisk before serving. Now you're ready to take your burgers, sandwiches, or fries to the next level with this restaurant-quality sauce!
Pro Tips For Making Arby'S Horseradish Sauce
- Mix Slowly: Horseradish is a beast—it’ll foam up like a shaken soda if you dump it in too fast. Stir in the mayonnaise first, then add the vinegar and sugar drop by drop while whisking. I learned this the hard way after a batch looked like a science experiment gone wrong.
- Use Real Vinegar: That "vinegar-flavored" salad dressing won’t cut it. Grab actual white vinegar—its sharpness balances the horseradish’s bite. Skip the cheap stuff; even a $2 bottle makes a noticeable difference. Trust me, your sauce won’t taste like it’s hiding in a fast-food fridge.
- Pepper Last: Freshly ground black pepper loses its punch when mixed too early. Hold off until everything else is combined, then add just a pinch—enough to wake up the flavors without overpowering. I used to add it all at once and ended up with a dish that tasted like a pepper mill exploded.
- Chill Before Serving: This sauce tastes flat straight out of the bowl. Pop it in the fridge for at least 30 minutes—let the flavors marry and the heat mellow. Serving it cold also keeps the horseradish from making your guests’ eyes water mid-bite. (Yes, even if you’re impatient like me.)
Troubleshooting perfect results
Too Spicy?
If your sauce packs more heat than you expected, balance it with a pinch of sugar or a splash of water. I’ve found that adding ½ teaspoon sugar at a time tames the burn while keeping the tang.
For a smoother texture, whisk in ½ teaspoon water to dilute the intensity without altering the flavor profile. Let it rest for 10 minutes before tasting again—the heat often mellows as it cools. 🌶️
Not Spicy Enough?
Need more kick? Boost the heat by adding ¼ teaspoon prepared horseradish at a time until you reach the perfect level. If you’re feeling adventurous, stir in a pinch of cayenne pepper or a dash of hot sauce for extra fire.
Remember, the sauce’s heat will intensify as it sits, so start conservative and adjust gradually. Taste after 30 minutes of chilling for the most accurate reading. ⚡
Sauce Too Thin?
If your sauce is too runny, stir in 1 tablespoon mayonnaise at a time until it reaches a thick, spreadable consistency. For a quick fix, let it sit uncovered in the fridge for 1-2 hours—the moisture will evaporate slightly, thickening it naturally.
Avoid over-mixing, as this can incorporate air and make the sauce grainy. A smooth, creamy texture is key for that Arby’s-quality feel. 🥛
Sauce Too Thick?
Thick sauce? Thin it out with ½ teaspoon water at a time, whisking constantly to avoid clumping. If it’s still too stiff, add an extra ¼ teaspoon vinegar to cut through the richness. For a more dramatic change, chill the sauce for 30 minutes—cold temperatures can make it thicken further.
If all else fails, a splash of lemon juice (just ¼ teaspoon) adds brightness and fluidity. 💧
Separation Happening?
If oil or horseradish separates, whisk vigorously to re-emulsify. For stubborn separation, add ½ teaspoon Dijon mustard or 1 teaspoon mayo and whisk until smooth. The mustard acts as a natural emulsifier, binding the ingredients back together.
If the issue persists, start fresh—sometimes a small batch fixes consistency issues better than forcing a fix. Prevention tip: Use cold ingredients straight from the fridge to slow down separation. ✨
Flavor Fading Fast?
Store your sauce in an airtight container in the fridge to preserve freshness for up to 1 week. If flavors dull after a few days, revive it by whisking in ½ teaspoon vinegar or a pinch of salt.
For extra longevity, freeze in ice cube trays—thaw and mix as needed. Avoid reheating, as heat can degrade the horseradish’s sharpness. A little freshness boost goes a long way! 💡
Nutrition facts
Frequently asked questions
Can I make this sauce without horseradish?
The horseradish is what gives this sauce its signature kick, but if you're sensitive to it, you can substitute 1 tablespoon hot sauce (like Frank's RedHot) for every ¼ cup prepared horseradish. For a milder version, use 1 teaspoon mustard powder mixed with 1 teaspoon water—just know the flavor won't be identical. The tangy brightness from vinegar will still shine through, but the heat will be noticeably different.
How long does it take for the flavors to develop fully?
For the best results, let the sauce sit in the fridge for at least 30 minutes before serving. This resting time allows the heat to mellow slightly and the flavors to meld together beautifully. If you're short on time, a 10-minute rest will help, but the longer you wait, the more balanced and delicious it becomes. Patience here makes all the difference!
Can I use this sauce on dishes other than burgers?
This versatile sauce works perfectly on fries, sandwiches, hot dogs, or even as a dip for veggies. It also pairs well with grilled chicken or seafood—just a drizzle adds that signature tangy kick. For a creative twist, try mixing it into deviled eggs or using it as a marinade base for meats. The possibilities are endless!
Why does my sauce look grainy?
Graininess usually happens when ingredients aren't mixed thoroughly or if the sauce separates. To fix it, whisk vigorously until smooth. If the issue persists, strain the sauce through a fine-mesh sieve to remove any lumps. For prevention, use cold ingredients and mix gently to avoid incorporating air. The sauce should be silky smooth—just like the restaurant version!
Is this sauce gluten-free?
Yes, this recipe is naturally gluten-free as long as you use a gluten-free mayonnaise. Double-check the label on your mayo to ensure it's certified gluten-free. All other ingredients in this recipe are gluten-free by default. Always verify with your mayo brand to be safe!