✔ Updated · heat-level guide, pairings and storage added
Burger King's zesty onion ring sauce is the creamy, tangy dip with a gentle kick that's served alongside the chain's onion rings. It's the dip I make every time onion rings hit our table.
At a glance
The one tip that matters: dissolve the sugar in the vinegar first, then give the sauce 30 minutes in the fridge. The horseradish and cayenne need that time to blend in.
This copycat-style version stirs together mayonnaise, ketchup, prepared horseradish, cayenne, yellow mustard and a splash of apple cider vinegar in about 5 minutes, with no cooking. A 30-minute rest in the fridge lets the horseradish and spice blend into the sauce. Below you'll find a heat guide from mild to hot, the best things to dip in it, and how long it keeps.
Why You'll Love This Zesty Sauce
- Creamy, tangy and a little spicy, with horseradish and cayenne cutting through anything fried.
- Five minutes and one bowl, with no cooking: just stir, chill and dip.
- Heat you control, from kid-friendly mild to properly hot with one simple guide.
What Is Burger King Zesty Sauce?
Zesty sauce is the creamy dipping sauce Burger King pairs with its onion rings. It's mayonnaise-based, pale orange from a little ketchup, and gets its kick from prepared horseradish and cayenne pepper. The result is sweet, tangy and lightly spicy at once, which is why it cuts through rich, salty fried food so well.
Burger King doesn't share its recipe, but the main flavors are easy to pick out: mayo, horseradish, ketchup, a touch of sugar, cayenne and an acid. This version adds yellow mustard for extra tang and uses apple cider vinegar for a slightly fruity sharpness. Lemon juice works too if that's what you have.
Zesty Sauce Heat Guide: Mild to Hot
The heat comes from two places: horseradish gives a sharp, nose-tingling bite, and cayenne adds a slow, warm burn. Adjust them together using the amounts below for one batch (1/2 cup mayonnaise).
- Taste after chilling. Horseradish softens and cayenne builds as the sauce rests, so wait 30 minutes before adding more heat. I learned that after one very fiery batch.
- Making it for a crowd? Split the base into two bowls and season one mild and one hot.
| Heat level | Horseradish | Cayenne | Good for |
|---|---|---|---|
| Kid-friendly | 1/2 tsp | None; add an extra 1/2 tbsp ketchup | Kids and anyone heat-shy |
| Mild | 1 tsp | 1/8 tsp | A gentle tang with a hint of warmth |
| Medium (recipe card) | 2 tsp | 1/2 tsp | Onion rings, fries and burgers |
| Hot | 1 tbsp | 1 tsp, plus a few dashes of hot sauce | Heat lovers, wings and fried pickles |
What to Serve With Zesty Sauce
It was made for onion rings, but zesty sauce works with almost anything crispy, and it makes a great spread too. For a Thousand Island-style burger sauce, see the King sauce in our copycat Burger King Big King. Building a stacked bacon cheeseburger? Try our Burger King Stacker sauce, a creamy, tangy, smoky cousin of this dip.
- Onion rings: the classic match. Try our Burger King onion rings recipe.
- Fries and tots: French fries, tater tots, sweet potato fries and potato wedges.
- Fried snacks: mozzarella sticks, fried pickles, chicken nuggets, chicken tenders and fish sticks.
- As a spread: on burgers, chicken sandwiches, fish sandwiches and wraps in place of plain mayo.
- Beyond fried food: as a dip for raw veggies, or thinned with a little vinegar as a dressing for a grilled chicken salad.
Step-by-Step Photos
Here's how it comes together. Exact amounts, times and temperatures are in the recipe card below.
Tips for Success
- Dissolve the sugar first. Stirring it into the vinegar before the mayo goes in means no gritty bits in the finished sauce.
- Use prepared horseradish. Jarred grated horseradish in vinegar gives the sharp bite. Creamy horseradish sauce is milder, so you'd need about twice as much.
- Add cayenne a little at a time. Start with 1/8 teaspoon and build up. You can add heat, but you can't take it out.
- Let it rest. 30 minutes in the fridge lets the spices hydrate and the flavors blend. Taste again before adding more heat, as it builds while it sits.
- Use full-fat mayo for the classic texture. It gives the thick, glossy body that clings to onion rings. Light mayo works but makes a thinner dip.
Burger King Zesty Onion Ring Sauce (Copycat)
6
servings5
minutes125
kcal35
minutesA copycat-style Burger King zesty sauce: creamy mayonnaise and ketchup with prepared horseradish, cayenne, yellow mustard and a splash of apple cider vinegar. Stir, chill for 30 minutes and serve with onion rings, fries and burgers.
Ingredients
1/2 cup mayonnaise
1 tablespoon ketchup
2 teaspoons prepared horseradish (see the heat guide)
2 teaspoons yellow mustard (or Dijon)
2 teaspoons apple cider vinegar
1/2 teaspoon granulated sugar
1/2 teaspoon cayenne pepper (1/8 teaspoon for mild, up to 1 teaspoon for hot)
1 teaspoon lemon juice (optional, for extra tang)
1/4 teaspoon kosher salt, plus more to taste
1/4 teaspoon black pepper
Directions
- Mix the Sauce
- In a medium bowl, stir the apple cider vinegar and sugar together until the sugar dissolves completely, about 30 seconds.
- Add the mayonnaise and ketchup and stir with a rubber spatula until combined.
- Add the horseradish, mustard and lemon juice, if using.
- Sprinkle in the cayenne, salt and black pepper. Start with less cayenne for a milder sauce; you can always add more later.
- Stir until the sauce is completely smooth and an even pale orange color, with no streaks of ketchup.
- Chill and Serve
- Taste and adjust: add more horseradish or cayenne for heat, or a little more ketchup or sugar to soften it.
- Cover and refrigerate for at least 30 minutes so the flavors blend. Stir and taste again before serving, as the heat builds slightly as it sits.
- Serve with onion rings, fries, chicken nuggets or burgers. Store covered in the fridge for up to 1 week.
Recipe Video
Like this recipe?
Follow us @recipefairy on Pinterest
Variations
- Lighter: use light mayonnaise, or swap half the mayo for plain Greek yogurt for a tangier, lower-calorie dip.
- No horseradish: add an extra teaspoon of Dijon mustard and an extra 1/4 teaspoon of cayenne. It's less sharp but still zesty.
- Smoky: add 1/4 teaspoon smoked paprika for a barbecue-style twist.
- Big batch: the recipe doubles or triples easily for parties and game days.
- More horseradish: if that's your favorite part, try our Arby's horsey sauce too.
How to Store Zesty Sauce
Spoon the sauce into a clean jar or airtight container and keep it in the fridge for up to 1 week. It's even better made a day ahead, which is how I usually make it. Use a clean spoon every time, and stir before serving because a little liquid can separate on top.
Don't freeze it: mayonnaise-based sauces split when they thaw and turn grainy. And don't leave it out at room temperature for more than 2 hours. Serve it in a small bowl and refill from the fridge.
Frequently Asked Questions
What is Burger King zesty sauce made of?
Burger King doesn't publish its recipe, but zesty sauce is a mayonnaise-based dip flavored with prepared horseradish, ketchup, a little sugar, cayenne pepper and an acid such as vinegar or lemon juice. This copycat-style version also adds yellow mustard, salt and black pepper for extra tang.
What sauce comes with Burger King onion rings?
Burger King's onion rings are traditionally paired with its zesty sauce, a creamy, slightly spicy dip with a horseradish kick. Sauce options can vary by restaurant, so ask when you order. To get the pairing at home, mix this sauce and chill it while you fry or bake your onion rings.
Is Burger King zesty sauce spicy?
It has a mild-to-medium kick rather than real heat. The horseradish gives a sharp bite and the cayenne adds gentle warmth, balanced by creamy mayo and a touch of sugar. With this recipe you choose the level: use 1/8 teaspoon cayenne for mild or up to 1 teaspoon for hot.
How long does homemade zesty sauce last?
Kept covered in the fridge, it lasts up to 1 week. Use a clean spoon each time and stir before serving. Don't freeze it, because mayonnaise-based sauces separate and turn grainy when thawed, and don't leave it at room temperature for more than 2 hours.
Can I make zesty sauce without horseradish?
Yes, though it will taste less sharp. Replace the horseradish with an extra teaspoon of Dijon mustard and an extra 1/4 teaspoon of cayenne or a few dashes of hot sauce. Wasabi paste also works in a pinch; start with 1/4 teaspoon because it's much stronger.
Hungry for more? Browse all our Burger King copycat recipes.
){kind=link}