Zaxby’s Nuclear Sauce Recipe: Spicy Signature Creaminess

This signature sauce captures the bold, creamy heat that made Zaxby’s famous. The perfect balance of spice and tang comes from a precise blend of common pantry ingredients.

With just 5 minutes of mixing and no cooking required, you can recreate this restaurant favorite at home. The result is a smooth, vibrant sauce that elevates chicken fingers, fries, or sandwiches.

Ingredients for Zaxby’s Nuclear Sauce

Common pantry staples blend into this bold, creamy sauce in minutes.

The mayo is the base, so Duke’s or Hellmann’s give that classic creamy texture. Ketchup should be Heinz—it’s the gold standard for that balance of sweet and tang. Horse radish from Kroger’s refrigerated section has better kick than shelf-stable. I grab my Worcestershire at Walmart (Lea & Perrins is the move). Hot sauce is flexible, but Frank’s RedHot hits the right spice level without overpowering.

No mayo? Greek yogurt at 1:1 ratio works, but the texture’s a touch thinner. Swap ketchup for sugar plus tomato paste if you’re out. Mustard can be Dijon for more bite, but yellow keeps it classic. If you’re avoiding spice, reduce hot sauce to 1 tsp. The garlic and onion powder are non-negotiable for depth—don’t skip them (fresh won’t blend right).

This keeps 5-7 days in the fridge in a sealed jar. The flavors meld overnight, so make it a day ahead if you can. Freezing’s not ideal—it separates. Stir well before each use (the spices settle). Perfect for dipping, drizzling, or slathering on sandwiches.

Step-by-Step Instructions for Zaxby’s Signature Sauce

Here’s how I make this creamy, spicy sauce that tastes just like the original.

Step 1: Combine the Creamy Base

In a medium bowl, add the 1 cup Mayonnaise and 0.5 cup Ketchup. I always use full-fat mayonnaise here—it gives the sauce that rich, velvety texture that’s essential.

Whisk these two together until completely smooth and uniform in color. You want no streaks of white or red remaining. This base creates the perfect foundation for all those bold flavors coming next.

Step 2: Add the Tangy and Spicy Elements

Now stir in the 2 tbsp Yellow Mustard, 2 tbsp Horse Radish, 1 tbsp Worcestershire Sauce, and 1 tbsp Hot Sauce. The mustard and horseradish bring that sharp tang, while the Worcestershire and hot sauce add depth and heat.

Mix thoroughly after each addition. The horseradish can settle at the bottom, so make sure it’s fully incorporated. You’ll start to see the color deepen as the flavors meld together.

Step 3: Season with Dry Spices

Sprinkle in the 1 tsp Garlic Powder, 1 tsp Onion Powder, 0.5 tsp Paprika, and 0.5 tsp Black Pepper. These spices might seem small, but they pack a punch.

Whisk again until everything is evenly distributed. The paprika adds a subtle smokiness, while the garlic and onion powders enhance the savory notes. Taste as you go—if you want more heat, you can add an extra pinch of black pepper.

Step 4: Rest and Chill for Best Flavor

Cover the bowl and let the sauce refrigerate for at least 1 hour. I know it’s hard to wait, but this resting time allows all the flavors to blend and mellow.

When you pull it out, give it one final stir. The sauce will have thickened slightly and the colors will have deepened. This step ensures every bite is packed with that signature Zaxby’s flavor.

Best Sauces and Condiments for This Recipe

Classic Pairings

This sauce was born for chicken fingers and tenders—the creamy heat clings perfectly to crispy coatings. I also love it with crinkle-cut fries for that nostalgic fast-food experience. The contrast of cool, creamy sauce and hot, salty fries is unbeatable.

Sandwich Upgrade

Drizzle it on fried chicken sandwiches or use as a spread for grilled chicken clubs. The sauce adds moisture and a serious flavor boost. I slather it on both sides of the bun for maximum impact. A 1-2 tbsp portion per sandwich is just right.

Dip for Veggies

Surprisingly great with celery sticks, carrot sticks, or bell pepper strips. The spice cuts through the crisp freshness. I serve it as a veggie platter dip at parties—it’s always the first to disappear.

Burger Booster

Swap out plain mayo for this sauce on cheeseburgers or chicken burgers. The smoky, tangy notes complement beef and poultry equally well. I add a 1 tbsp dollop to each patty before topping. 🔥

Wing Sauce

Thin it slightly with 1-2 tsp water and toss with fried chicken wings. The sauce coats evenly and delivers that signature Zaxby’s flavor. For extra heat, add ½ tsp cayenne pepper to the mix.

Breakfast Twist

Try it on biscuits or as a dip for hash browns. The creaminess pairs surprisingly well with flaky layers or crispy potatoes. I discovered this combo on a road trip and never looked back.

Frequently Asked Questions