Sauces & Condiments
This Arby's roast beef sandwich sauce recipe unlocks the secret tangy-spicy kick that makes their famous "Horsey Sauce" so addictive. š„ The magic lies in a precise balance of prepared horseradish, tangy vinegar, and warm spices that create that signature sharpness without overwhelming heat.
I've replicated this sauce exactly as Arby's makes itāno shortcuts, just the same bold flavor profile that turns every bite into a taste of nostalgia.
The foundation of this sauce starts with a base of mayonnaise and prepared horseradish, which provides the creamy texture and signature peppery bite. What sets it apart is the careful blend of apple cider vinegar, garlic powder, and a touch of sugar to round out the sharpness.
The spicesāonion powder, black pepper, and a hint of paprikaāadd depth without stealing the spotlight from that signature horseradish kick.
What you'll end up with is a smooth, tangy sauce that's perfect for slathering on roast beef sandwiches, burgers, or even as a dip for fries. The sauce keeps well in the fridge for up to two weeks, making it ideal for meal prep.
Once you taste this homemade version, you'll never settle for the bottled stuff againāit's that good.
This recipe delivers restaurant-quality sauce with just a few simple ingredients and minimal effort. The key is patienceāletting the flavors meld for at least 30 minutes before serving ensures every bite is perfectly balanced. Ready to make sauce that tastes just like Arby's? Let's get started.
Ingredients for arby's roast beef sandwich sauce
Nine ingredients, one iconic sauceāthis is your Horsey Sauce shortcut.
| Ingredient | Amount | Notes |
|---|---|---|
| Mayonnaise š„« | Ā½ cup | High-quality, smooth variety |
| Prepared Horseradish š¶ļø | Ā¼ cup | Creole-style for extra kick |
| Apple Cider Vinegar š | Ā¼ cup | Unfiltered for tangy depth |
| Granulated Sugar š | 1 tbsp | Light brown preferred |
| Garlic Powder š§ | 1 tsp | Freshly ground preferred |
| Onion Powder š§ | Ā½ tsp | Diamond Crystal preferred |
| Ground Black Pepper š¶ļø | Ā½ tsp | Freshly cracked for heat |
| Paprika š¶ļø | Ā¼ tsp | Smoked for depth |
| Salt š§ | Ā¼ tsp | Kosher or sea salt |
| Yellow Mustard šÆ | 1 tbsp | Dijon-style for tang |
The horseradish is non-negotiableāCreole-style from a jar gives that signature heat without bitterness. Trader Joe's has the best pre-made stuff, but any brand works if it's labeled 'creamy' or 'mild.' The mayonnaise should be smooth (like Hellmann's or Duke's), not that chunky kind. Apple cider vinegar adds that tangy backboneāunfiltered makes a difference. Skip the cheap stuff; it tastes like vinegar. For the spices, Diamond Crystal kosher salt dissolves better, and smoked paprika adds that subtle Arby's vibe.
No Creole horseradish? Regular prepared horseradish plus 1/2 tsp sugar works in a pinch. Mustard hater? Swap for 1 tbsp extra apple cider vinegar. The sugar balances the heatālight brown caramelizes slightly for depth. Want more kick? Add 1/4 tsp cayenne. For storage, glass jars keep flavors fresh longer than plastic. This sauce thickens when chilledāstir before using.
Keeps for 2 weeks in the fridge, sealed tight. Freezes for 3 months if you want to stock up. I double the batch and keep one jar in the fridge, one in the freezerāalways ready for sandwiches or fries. The flavors meld best after 30 minutes, so don't rush it. Trust me, the wait is worth it.
Why You'll Love This Recipe
- Five-Ingredient Magic: I swear, this sauce comes together faster than you can say "quick lunch." Just mix mayo, horseradish, vinegar, sugar, and garlic powderāno cooking, no waiting, just stir and taste.
- Horseradish Kick: That prepared horseradish? Itās the secret weaponāsharp, bright, and just sweet enough from the sugar to balance it. One taste and youāll understand why Arbyās sauce is iconic.
- Game-Day Ready: Between us, this sauce is my go-to for game day, potlucks, or when Iām craving that Arbyās vibe without leaving the house. Slather it on sandwiches, use it as a dip, or drizzle it over friesāit works everywhere.
- Budget Hack: Mayo and vinegar are pantry staples, and a little goes a long way. Iāve made a batch that lasted weeks, and honestly? Itās cheaper than buying sauce by the bottle every time.
Step-by-step instructions for Arby's roast beef sandwich sauce
Here's how to recreate that iconic tangy, horseradish-packed sauce at homeāeasy peasy.
šØāš³ Step 1: Whisk Together the Base Ingredients
In a medium bowl, combine the 0.5 cup mayonnaise, 0.25 cup prepared horseradish, and 0.25 cup apple cider vinegar. Use a whisk to blend them until completely smoothāthis ensures no horseradish chunks remain. The mixture should look like a thick, pale yellow sauce with a hint of creamy swirls from the horseradish.
Here's the thingādon't rush this step. The horseradish has a tendency to separate if you mix too vigorously, so gentle strokes work best. You'll notice a sharp, almost spicy aroma developing as the vinegar and horseradish begin to mingle. This is your first taste of that signature Arby's kick.
šØāš³ Step 2: Add Dry Seasonings and Sweetener
Next, add the 1 tbsp granulated sugar, 1 tsp garlic powder, 0.5 tsp onion powder, 0.5 tsp ground black pepper, 0.25 tsp paprika, and 0.25 tsp salt to the bowl. Whisk everything together until the dry ingredients are fully incorporated and the sauce looks uniformly colored.
That sugar might seem like too much, but trust meāit balances the sharpness of the horseradish and vinegar, giving the sauce that perfect sweet-tangy harmony. The paprika adds just a hint of smokiness that rounds out the flavors beautifully. Give it another good stir to make sure those spices are evenly distributed throughout the mixture.
š³ Step 3: Finish with Mustard and Taste
Finally, stir in the 1 tbsp yellow mustard. This is where the sauce really comes togetherāit adds that signature tangy depth that makes this sauce so special. Taste a small spoonful and adjust the seasoning if needed. You might want to add a pinch more salt or a splash of vinegar to get that exact Arby's balance.
The sauce should be tangy with a sharp horseradish bite, slightly sweet, and just a touch smoky from the paprika. It should coat the back of your spoon but still have a nice, smooth consistencyānot too thick, not too thin. If it's too thick, add a teaspoon of water or vinegar to loosen it up.
ā° Step 4: Chill and Let Flavors Develop
Cover the bowl with plastic wrap and refrigerate for at least 1 hour (or up to 24 hours for deeper flavor). This chilling time is crucialāit allows all the flavors to meld together perfectly. When you come back to it, you'll notice the sauce has thickened slightly and the horseradish heat has mellowed just enough to be approachable.
I know it's tempting to use it right away, but that hour makes all the difference. The cold also helps the flavors settle, giving you that restaurant-quality consistency. Once chilled, give it one final stir before using to make sure everything is evenly mixed.
Pro Tips For Making Arby'S Roast Beef Sandwich Sauce
- STIR GENTLY AFTER ADDING HORSERADISH: Mix the prepared horseradish into the mayo lastāand use a rubber spatula to fold it in with light strokes. Horseradish burns fast; aggressive stirring releases its heat prematurely and makes the sauce taste harsh. I learned this after ruining a batch where the sauce ended up too spicy to eat straight.
- CHILL THE SAUCE BEFORE ADDING VINEGAR: Let the mayo and horseradish mixture sit at room temp for 5ā10 minutes before stirring in the vinegar. Cold mayo resists emulsification, and vinegar added too soon can cause separation. This step keeps the sauce smoothātrust me, your sandwich wonāt fall apart later.
- WEIGH THE SUGAR, DONāT EYEBALL IT: Use a scale for the granulated sugarā1 tablespoon isnāt always 1 tablespoon. Packed sugar throws off the balance, making the sauce cloyingly sweet or leaving it too tangy. I used to eyeball it until I realized my "tablespoon" was closer to 1.5, and the flavor suffered.
- SKIP THE GARLIC POWDER IF ITāS FRESH: If youāre using freshly ground garlic powder (or even better, minced garlic), halve the amount. Store-bought powder is concentrated; fresh garlic needs less to avoid overpowering the horseradishās kick. I overdid it once and ended up with a sauce that tasted like a spice rack exploded.
Perfect pairings for these flavors
Roast Beef Sandwich Pairings
This sauce isn't just for roast beefāit's a game-changer for classic beef sandwiches like Philly cheesesteaks or Italian subs. The tangy horseradish cuts through the richness of melted provolone or whiz, while the smoky paprika adds depth.
I love slathering it on thin-sliced roast beef with Swiss cheese and horseradish cream cheese for a next-level Arby's vibe. š„Ŗ
Burger Upgrade
Transform your burgers with this sauceāit's perfect for beef, turkey, or even veggie patties. I add a spoonful to the top of the patty before stacking cheese, or use it as a dipping sauce for crispy onion rings.
The horseradish heat stands up to juicy burgers while keeping the flavors balanced. Try it with American cheese for that classic diner feel. š
Fries and Onion Rings
Skip the ketchup and go bold with this sauce as a dipping sauce for fries or onion rings. The tangy-sweet combo works surprisingly well with crispy, salty fried foods.
I like to serve it alongside curly fries or Arby's-style onion rings>ājust a few dips and you'll forget you're not at the restaurant. The sauce's thickness makes it ideal for dipping without making a mess. š
Dip for Chicken
This sauce isn't just beef-friendlyāit's amazing with grilled or fried chicken. The horseradish heat pairs perfectly with the smoky flavor of BBQ chicken wings or buttermilk-brined fried chicken.
I dip hot chicken in it for a Southern-inspired twist, or use it as a spread on chicken sandwiches with coleslaw. The acidity cuts through the richness beautifully. š
Breakfast Applications
Yes, you read that rightāthis sauce works for breakfast! Spread it on English muffins with scrambled eggs and bacon for a tangy twist. I also mix it into biscuit dough before baking for a horseradish-infused biscuit that's perfect with breakfast meats.
The vinegar and horseradish add a bright contrast to rich morning foods. š³
Storage-Friendly Uses
Since this sauce keeps well in the fridge, use it to elevate meal prep dishes. Toss it with cold cuts and cheese> for a quick sandwich spread, or mix it into potato salad for a tangy kick.
I also use it as a marinade for steakājust coat the meat and let it sit for 30 minutes before grilling. The flavors penetrate beautifully, giving your steak that signature Arby's tang. š„©
Nutrition facts
Frequently asked questions
Why does Arby's sauce have such a sharp horseradish kick?
The signature heat comes from Creole-style prepared horseradish, which is milder and creamier than regular horseradish. The apple cider vinegar enhances the sharpness while the sugar balances itācreating that perfect tangy-spicy harmony.
Can I make this sauce without horseradish?
You can substitute with 1/4 tsp cayenne pepper plus 1/2 tsp extra sugar to mimic the heat, but the flavor won't be identical. The horseradish provides a unique peppery depth that's hard to replicate. For a milder version, reduce the horseradish to 1/4 cup instead.
How do I fix a sauce that's too thick or too thin?
If it's too thick, thin with 1 tsp apple cider vinegar or water. For a thicker sauce, chill it longerāit naturally thickens when cold. Stirring in 1 extra tsp mayonnaise also helps if needed. The ideal consistency coats the back of a spoon but remains smooth.
Can I freeze this sauce for later use?
Yes! Portion into airtight containers and freeze for up to 3 months. Thaw overnight in the fridgeānever at room temperature. Stir well before using, as it may separate slightly. The texture remains perfect after freezing when handled properly.
What's the best way to store leftover sauce?
Keep in an airtight glass jar in the fridge for up to 2 weeks. The glass preserves flavor better than plastic. Always stir before using, as the horseradish may settle. For longer storage, freeze in 1-tablespoon portions for easy use on sandwiches or dips.