Arby's horsey sauce is just mayonnaise and horseradish—the 'secret' ingredient list has only 4 total components.
Copycat Arby's Horsey Sauce
Get ready to elevate your sandwiches with this zesty copycat Arby's Horsey Sauce! This delightful blend of velvety mayonnaise, a splash of tangy vinegar, and a bold kick of horseradish creates an irresistible topping that will make your taste buds dance. Perfect for slathering on roast beef or dipping your fries, this sauce is a must-try!
Prep
10
min
Cook
0
min
Serves
4
people
Level
beginner
📝 Ingredients
Serves 4🫙Pantry Staples(1)
- 1 teaspoon white sugar (5 ml)
🧂Spices & Seasonings(1)
- 1 teaspoon kosher salt (5 ml)
🍯Sauces & Condiments(3)
- 3/4 cup mayonnaise (180 ml)
- 1 teaspoon mustard powder (5 ml)
- 1 teaspoon distilled white vinegar (5 ml)
📦Other(1)
- 1 1/2 tablespoons prepared horseradish (22.5 ml)
👨🍳 Instructions
- 1
Whisk together mayonnaise, horseradish, vinegar, mustard powder, sugar, and salt together in a bowl until smooth.
- 2
Serve immediately, or store, covered, in the refrigerator for up to 5 days.
💡 Pro Tips
- ✓Use prepared horseradish that's been drained for 10 minutes to remove excess moisture, preventing the sauce from becoming watery and maintaining proper emulsion stability.ingredient10 minutes draining
- ✓Whisk ingredients in order of viscosity (mayo first, then horseradish, then liquids) to create a stable emulsion and prevent breaking due to density differences.technique
- ✓Let the sauce rest for 30 minutes before serving so the mustard powder fully hydrates and the horseradish bite mellows, creating the signature balanced flavor profile.timing30 minutes
- ✓Use white vinegar at 5% acidity rather than other vinegars because it provides the sharp tang without competing flavors that would mask the horseradish.ingredient5% acidity
- ✓Store in an airtight container because horseradish compounds are volatile and will lose 25-30% of their pungency within 48 hours when exposed to air.equipment25-30% pungency loss
Share this recipe
Prep
10
min
Cook
0
min
Serves
4
people
Level
beginner
Share this recipe
Arby's horsey sauce is just mayonnaise and horseradish—the 'secret' ingredient list has only 4 total components.
Copycat Arby's Horsey Sauce
Get ready to elevate your sandwiches with this zesty copycat Arby's Horsey Sauce! This delightful blend of velvety mayonnaise, a splash of tangy vinegar, and a bold kick of horseradish creates an irresistible topping that will make your taste buds dance. Perfect for slathering on roast beef or dipping your fries, this sauce is a must-try!
📝 Ingredients
Serves 4🫙Pantry Staples(1)
- 1 teaspoon white sugar (5 ml)
🧂Spices & Seasonings(1)
- 1 teaspoon kosher salt (5 ml)
🍯Sauces & Condiments(3)
- 3/4 cup mayonnaise (180 ml)
- 1 teaspoon mustard powder (5 ml)
- 1 teaspoon distilled white vinegar (5 ml)
📦Other(1)
- 1 1/2 tablespoons prepared horseradish (22.5 ml)
👨🍳 Instructions
- 1
Whisk together mayonnaise, horseradish, vinegar, mustard powder, sugar, and salt together in a bowl until smooth.
- 2
Serve immediately, or store, covered, in the refrigerator for up to 5 days.
💡 Pro Tips
- ✓Use prepared horseradish that's been drained for 10 minutes to remove excess moisture, preventing the sauce from becoming watery and maintaining proper emulsion stability.ingredient10 minutes draining
- ✓Whisk ingredients in order of viscosity (mayo first, then horseradish, then liquids) to create a stable emulsion and prevent breaking due to density differences.technique
- ✓Let the sauce rest for 30 minutes before serving so the mustard powder fully hydrates and the horseradish bite mellows, creating the signature balanced flavor profile.timing30 minutes
- ✓Use white vinegar at 5% acidity rather than other vinegars because it provides the sharp tang without competing flavors that would mask the horseradish.ingredient5% acidity
- ✓Store in an airtight container because horseradish compounds are volatile and will lose 25-30% of their pungency within 48 hours when exposed to air.equipment25-30% pungency loss