Arby's Sauce Recipe: Creamy Horseradish Kick Without the Bottle

Recreating Arby’s sauce at home delivers that signature creamy horseradish kick without the mystery of store-bought versions. After years of testing variations, I’ve perfected a balanced blend of tangy, spicy, and slightly sweet notes that cling perfectly to fries or sandwiches.

The key lies in precise ratios of ketchup, vinegar, and a touch of creaminess that mimics the restaurant’s signature texture.

This recipe transforms simple pantry staples into a sauce that’s restaurant-quality yet requires just 10 minutes of active time. The horseradish adds that signature heat, while a splash of vinegar brightens the flavor without overpowering.

What makes it special is how it adapts—use it as a dip, marinade, or even a sandwich spread. My grandmother’s handwritten notes always emphasized balance, and this sauce proves that principle holds true even in modern comfort food.

The result is a velvety, slightly thick sauce with a tangy bite that lingers just right. It stays fresh in the refrigerator for up to two weeks, making it perfect for meal prep or keeping on hand for quick dinners.

Whether you’re craving that classic Arby’s experience or just want to elevate your homemade meals, this sauce delivers every time.

For those who prefer it milder or spicier, adjustments are easy—reduce the horseradish for a gentler kick or add a pinch of cayenne for extra heat. The beauty of homemade is control, and this recipe gives you exactly that. Let’s get started on making your own signature sauce!

Ingredients for arby's sauce

Eight simple ingredients create that iconic Arby’s sauce at home—creamy, tangy, and packed with horseradish heat.

The ketchup and horseradish are non-negotiable—they’re what give this sauce its signature kick. Heinz ketchup works best (it’s what Arby’s uses), but any smooth, no-sugar-added brand will do. For horseradish, Gourmet Garden Creole-style adds that perfect tangy bite—it’s worth tracking down at specialty stores or online. The mayo and vinegar are your creaminess base, so grab full-fat mayo (it emulsifies better) and distilled white vinegar for the cleanest flavor. I always double-check the sugar—just enough to balance the tang without making it sweet.

No horseradish? Hot sauce at half the amount gets you close, but it won’t be the same. Swap mayo for Greek yogurt (reduce vinegar by 1 tbsp) for a lighter version. The mustard powder and onion powder are subtle but add depth—if you’ve got fresh mustard, use 1 tbsp instead. Trader Joe’s has great bulk spices for these if you’re stocking up. For extra heat, add a pinch of cayenne (start with 1/8 tsp). The garlic powder can be skipped if you’re sensitive to that flavor—it’s more about the horseradish here.

This sauce keeps beautifully in the fridge for 2 weeks—just stir before using. For longer storage, freeze in ice cube trays (thaw in the fridge). I make a double batch every time—one for dipping, one for sandwiches. The texture thickens as it sits, so thin with a splash of water if needed. Pro tip: Add a few drops of lemon juice if the horseradish flavor fades over time.

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

Here's how to make that signature creamy, tangy sauce at home—just like the restaurant version.

In a medium bowl, combine the 0.75 cup ketchup, 0.5 cup prepared horseradish, and 0.5 cup mayonnaise. Use a whisk to blend these ingredients thoroughly until smooth and fully incorporated. The horseradish will add that signature sharp kick, while the mayonnaise creates the creamy texture you love. I like to whisk for about 30 seconds to make sure everything is well mixed before moving on.

This is where the magic starts—those three ingredients form the foundation of the sauce. If you're using Creole-style horseradish, you'll notice a deeper, more complex tang that really elevates the flavor. Don't skip this blending step; it ensures the sauce will be consistent and delicious from the first bite.

Next, stir in the 0.25 cup distilled white vinegar, 1 tablespoon granulated sugar, 1 teaspoon salt, 0.5 teaspoon black pepper, 0.25 teaspoon mustard powder, 0.25 teaspoon onion powder, and 0.25 teaspoon garlic powder. Mix well until all the dry ingredients are fully dissolved and the sauce has a uniform consistency. The vinegar brightens the flavors, while the sugar balances the tanginess—this is what gives the sauce its perfect sweet-and-sour profile.

I always taste the sauce at this stage to check the balance. If it feels too sharp, add a pinch more sugar. If it needs more depth, a tiny bit more horseradish or garlic powder can help. The goal is to get that signature Arby's flavor—creamy, tangy, and just a little spicy.

Cover the bowl with plastic wrap and let the sauce sit at room temperature for at least 15 minutes. This resting time allows all the flavors to meld together and the sauce to reach its full potential. The creamy texture will also thicken slightly, making it even more spreadable and delicious. Don't skip this step—patience is key to getting that restaurant-quality result.

While the sauce rests, you can use this time to prep whatever you're planning to serve it with—whether it's sandwiches, fries, or even as a dip. The longer it sits, the better the flavors will develop, so if you have time, let it rest for up to 30 minutes. Just make sure to give it a quick stir before serving to redistribute any settled ingredients.

After resting, give the sauce one final taste and adjust the seasoning if needed. If it's too thick, stir in a teaspoon or two of water or vinegar to loosen it up. If it's too thin, let it sit uncovered for another 5-10 minutes to thicken naturally. The sauce should be smooth, creamy, and perfectly balanced—just like the Arby's version you know and love.

Serve immediately while still fresh. This sauce pairs perfectly with sandwiches, burgers, or even as a dip for fries or veggies. Store any leftovers in an airtight container in the refrigerator for up to 5 days, though it's best enjoyed fresh. The creamy texture and tangy kick make it a crowd-pleaser every time!

Dietary considerations for this arby's sauce

Gluten-Free Adaptation

This sauce is naturally gluten-free since it relies on simple ingredients like ketchup, horseradish, and mayo. However, double-check your ketchup brand—some contain hidden gluten. I always reach for Heinz or Hunt’s ketchup, which are certified gluten-free.

The prepared horseradish and spices are also safe, but if you’re highly sensitive, verify labels. The sauce works perfectly as a dip for gluten-free fries or a sandwich spread without any modifications. 🌱

Dairy-Free Version

For a dairy-free twist, swap the mayo for vegan mayo (I love Hellmann’s Vegan or Sir Kensington’s). The texture stays creamy, though it may be slightly lighter. Reduce the vinegar by 1 tablespoon to balance the tanginess, as dairy-free mayo can be less rich.

This version still delivers that signature horseradish kick—just without the dairy. It’s great for those avoiding lactose or following a plant-based diet.

Lower-Sugar Option

If you’re watching sugar intake, cut the granulated sugar to ½ tablespoon or use a sugar substitute like monk fruit sweetener. The sauce will still taste balanced, though the tanginess will be more pronounced.

For extra sweetness, add 1 teaspoon honey or maple syrup—just remember, these add natural sugars. This version keeps the creamy texture while reducing refined sugar. 🍯

Spicier or Milder

Adjust the heat to your preference. For extra spice, add ½ teaspoon cayenne pepper or 1 teaspoon hot sauce (like Frank’s RedHot). If you prefer milder, reduce the horseradish to ¼ cup and omit the cayenne.

My grandmother always said, “You can’t fix what isn’t there,” so taste as you go! The sauce’s versatility lets you tweak it for any crowd. 🌶️

Allergen-Friendly Notes

This recipe is free from common allergens like nuts, eggs, and shellfish, making it safe for most dietary restrictions. If you’re allergic to mustard, skip the mustard powder—it’s optional for depth. For soy concerns, ensure your mayo is soy-free (like Primal Kitchen).

Always check labels, especially for ketchup and horseradish, as cross-contamination can occur. The simplicity of this sauce makes it a safe bet for allergy-conscious cooks.

Frequently asked questions