Arby's Horseradish Sauce Recipe: Spicy Kick and Creamy Balance

This Arby's horseradish sauce recipe delivers that signature creamy, tangy kick you crave between every bite. 💛 The secret lies in balancing sharp horseradish with smooth mayo and a touch of vinegar for that signature tang—just like the original.

I've perfected this version after years of experimenting, ensuring it's smooth enough for sandwiches but still packs enough heat to satisfy spice lovers.

The magic happens when you emulsify the ingredients properly, creating a velvety texture that coats sandwiches perfectly without overwhelming them. This recipe uses simple pantry staples: prepared horseradish, mayo, vinegar, and a hint of sugar to balance the sharpness.

It's the same sauce that makes Arby's roast beef legendary, now in your kitchen.

What you'll end up with is a creamy, slightly grainy sauce with a perfect spicy-tangy balance—ideal for spreading on sandwiches, dipping fries, or even mixing into deviled eggs. The sauce keeps well in the fridge for up to 2 weeks, making it perfect for meal prep.

No more settling for store-bought versions that can't match the real deal.

Serve it immediately on your favorite sandwiches or let it sit for 30 minutes to allow the flavors to meld even more. The result is a sauce that's restaurant-quality at home, with that unmistakable Arby's taste you know and love. Let's make it!

Ingredients for arby's horseradish sauce

Simple pantry staples transform into that iconic Arby's tangy, creamy horseradish sauce you love.

The horseradish is non-negotiable here. Freshly grated gives the best kick, but prepared horseradish works in a pinch—just make sure it's not too watery. Trader Joe's and Whole Foods have the best quality, but the regular grocery store brand is fine too. The mayo matters too—full-fat, high-quality mayo (like Hellmann's or Duke's) emulsifies better and gives that signature creamy texture. Skip the light or non-fat versions—they won't hold up right. If you're feeling fancy, you can even make your own mayo with olive oil and egg yolks, but honestly, good store-bought does the trick.

No white vinegar? Apple cider vinegar or lemon juice works in a pinch, but it'll change the flavor slightly. Short on horseradish? Add a pinch of cayenne for heat, but it won't be the same. The sugar balances the sharpness—brown sugar adds a hint of molasses depth, but white sugar keeps it classic. The garlic and onion powders are optional but add a subtle depth that makes this sauce taste even more like the real deal. If you're making this for a crowd, double the recipe—it disappears fast, especially when paired with roast beef sandwiches.

This sauce keeps beautifully in the fridge for up to 2 weeks if stored in an airtight container. The flavors actually meld better after sitting for 30 minutes, so let it rest before serving. It's perfect for meal prep—just grab a jar when you're ready to assemble sandwiches. If it separates, just whisk it back together before using. Pro tip: Add a splash of mayo if it gets too thick from sitting. Freezes well too, though the texture might get slightly grainier after thawing.

Step-by-step instructions for Arby's horseradish sauce

Here's how to recreate that signature tangy, creamy kick at home—easy and foolproof.

In a medium bowl, combine the 1 cup mayonnaise and 0.5 cup prepared horseradish. Use a silicone spatula to stir until completely smooth—you want no streaks of horseradish left. I like to press the spatula against the bowl's sides to ensure everything incorporates evenly. The mixture should look like a pale, creamy sauce with a hint of pink from the horseradish.

This is where the magic happens—the mayo provides that rich, velvety texture while the horseradish delivers the signature heat. If you're using freshly grated horseradish, you might see some liquid separate, but don't worry—it'll blend right in as you mix. The goal is a uniform consistency that's thick enough to coat a spoon but still spreadable.

Add the 2 tablespoons white vinegar, 1 tablespoon granulated sugar, 0.5 teaspoon salt, 0.25 teaspoon black pepper, 0.25 teaspoon garlic powder, and 0.25 teaspoon onion powder to the bowl. Stir gently but thoroughly to distribute all the spices evenly. Here's the thing—you don't want to overmix, but you also don't want any dry spots of powdered spices.

The vinegar cuts through the richness of the mayo and horseradish, while the sugar balances the sharpness. I always taste at this stage—you should feel a nice balance of creaminess, heat, and tang. If it's too sharp, add a pinch more sugar. If it's too mild, add a tiny bit more vinegar. This sauce is all about that perfect equilibrium between spicy and smooth.

Cover the bowl with plastic wrap and refrigerate for at least 30 minutes—I usually wait 1 hour if I can. This resting period allows all the flavors to meld together beautifully. The horseradish's heat will mellow slightly, and the spices will fully dissolve into the mixture, creating that signature Arby's taste.

Don't skip this step, even if you're eager to try it. The flavors develop and harmonize during this time, making the difference between good sauce and restaurant-quality sauce. When you're ready to serve, give it one final stir—you'll notice how much smoother and more cohesive everything has become.

Before serving, taste the sauce again and make any final adjustments. If it needs more heat, add a tiny bit more prepared horseradish. If it's too thick, stir in 1 teaspoon water at a time until it reaches your desired consistency. The sauce should be thick enough to stay on a spoon but still spreadable—perfect for dipping or drizzling.

This sauce pairs perfectly with chicken fingers, burgers, or even as a dip for veggies. The creamy texture and spicy kick make it irresistibly addictive. Store any leftovers in an airtight container in the refrigerator for up to 1 week. The flavors actually improve over time, so it makes a great make-ahead sauce for game day or parties!

Dietary considerations for these flavors

Gluten-Free Adaptation

The original recipe is naturally gluten-free since it contains no wheat-based ingredients. However, always double-check your prepared horseradish and spices for hidden gluten—some brands add anti-caking agents or flavorings with gluten. I recommend Trader Joe's or Whole Foods prepared horseradish, as they clearly label their products gluten-free.

If you're unsure, look for a label that says "certified gluten-free" to be extra safe. 🌾

Dairy-Free Substitution

For a dairy-free version, replace the mayo with vegan mayo like Hellmann's Vegan or Sir Kensington's. These brands mimic the creamy texture perfectly while keeping the sauce rich and spreadable.

You might need to add 1 extra teaspoon of vinegar to balance the tanginess, as some vegan mayos are milder. The horseradish and spices will still deliver that signature kick without any dairy. 🥛

Low-Sugar Options

If you're watching your sugar intake, reduce the granulated sugar to ½ teaspoon or swap it for ½ teaspoon of stevia or monk fruit sweetener. The vinegar and horseradish already provide enough tang and heat to balance the flavors without needing much sweetness.

Taste as you go—sometimes, a tiny bit of sugar is still needed to round out the sharpness, but you can often skip it entirely. 🍬

High-Protein Boost

For a protein-packed version, stir in 1 tablespoon of Greek yogurt (plain or dairy-free) after mixing the base. This adds creaminess and a subtle tang while boosting protein content. I like to use Fage 5% plain Greek yogurt for the best texture.

If you're avoiding dairy, coconut yogurt works too—just add it at the end to prevent curdling. This tweak makes the sauce even more satisfying, especially on sandwiches. 💪

Allergy-Friendly Notes

This sauce is generally safe for most allergies, but always verify ingredient labels. The mayo is the only potential allergen—opt for egg-free mayo (like Just Mayo) if needed. For mustard allergies, skip any additional mustard and rely solely on the horseradish for heat.

If you're sensitive to sulfur compounds (common in horseradish), reduce the amount to ¼ cup and add ½ teaspoon of honey to mellow the sharpness. Always prioritize certified allergen-free brands when in doubt. 🚫

Frequently asked questions