Authentic Northern Alabama Ivory BBQ Sauce

🌍 Cuisine: American (Southern)
🏷️ Category: Condiments & Sauces
⏱️ Prep: 15 minutes
🍳 Cook: 0 minutes
👥 Serves: 2 cups

📝 About This Recipe

Born in 1925 at Big Bob Gibson Bar-B-Q in Decatur, Alabama, this legendary white sauce breaks every rule of traditional tomato-based BBQ. It features a zesty mayonnaise base spiked with a sharp vinegar tang, a hint of horseradish heat, and a subtle sweetness that cuts through the smoke of grilled meats. This creamy, versatile condiment is a Southern treasure that transforms ordinary smoked chicken into a culinary masterpiece.

🥗 Ingredients

The Creamy Base

  • 1 1/2 cups Mayonnaise (high-quality, full-fat brands like Duke's or Hellmann's are essential)
  • 1/3 cup Apple Cider Vinegar (provides the characteristic Southern tang)
  • 2 tablespoons Water (to reach the perfect drizzling consistency)

The Zest and Heat

  • 1 tablespoon Prepared Horseradish (not horseradish sauce; use the extra hot variety for more kick)
  • 1 tablespoon Dijon Mustard (adds depth and acts as an emulsifier)
  • 1 tablespoon Lemon Juice (freshly squeezed for brightness)
  • 1 teaspoon Worcestershire Sauce (adds an essential savory umami layer)
  • 1/2 teaspoon Hot Sauce (Cayenne-based, like Crystal or Louisiana style)

Seasonings and Spices

  • 1 tablespoon Light Brown Sugar (packed; to balance the acidity)
  • 1 teaspoon Kosher Salt (adjust to taste)
  • 1 teaspoon Coarse Black Pepper (freshly cracked is best for visible flecks)
  • 1/2 teaspoon Garlic Powder
  • 1/2 teaspoon Onion Powder
  • 1/4 teaspoon Cayenne Pepper (optional, for an extra back-of-the-throat hum)

👨‍🍳 Instructions

  1. 1

    Select a medium-sized non-reactive mixing bowl (glass or stainless steel) to prevent any metallic taste from the vinegar.

  2. 2

    Add the mayonnaise to the bowl first, using a spatula to ensure you get every bit of the creamy base.

  3. 3

    Slowly whisk in the apple cider vinegar and water. Adding liquid gradually prevents the mayonnaise from breaking and ensures a smooth emulsion.

  4. 4

    Incorporate the Dijon mustard and prepared horseradish, whisking vigorously until no lumps remain.

  5. 5

    Add the fresh lemon juice, Worcestershire sauce, and hot sauce to the mixture, stirring to combine.

  6. 6

    In a small separate ramekin, mix the brown sugar, salt, black pepper, garlic powder, onion powder, and cayenne pepper to ensure there are no clumps of sugar.

  7. 7

    Gradually sprinkle the dry spice mix into the wet ingredients while whisking constantly.

  8. 8

    Continue whisking for 1-2 minutes until the sugar and salt have completely dissolved and the sauce is perfectly uniform.

  9. 9

    Taste the sauce with a piece of grilled chicken or a clean spoon. The flavor should be sharp and tangy initially, followed by a creamy finish and a peppery bite.

  10. 10

    Transfer the sauce to an airtight glass jar or a squeeze bottle for easy application.

  11. 11

    Cover and refrigerate for at least 2 hours before serving. This 'resting' period is crucial as it allows the dried spices to hydrate and the flavors to meld.

  12. 12

    Before serving, give the sauce a quick shake or stir as some natural separation may occur.

💡 Chef's Tips

Use a high-quality mayonnaise like Duke's; cheap brands can make the sauce taste overly oily. If the sauce is too thick for your liking, add water one teaspoon at a time until it reaches a pourable consistency. For a truly authentic experience, dunk your smoked chicken quarters directly into a bowl of the sauce while they are still hot from the grill. Avoid using 'Creamy Horseradish' sauce—you want the grated 'Prepared Horseradish' for that signature nasal-clearing kick. This sauce keeps beautifully in the refrigerator for up to 2 weeks, and the flavor actually improves after the first 24 hours.

🍽️ Serving Suggestions

Drizzle generously over hickory-smoked pulled pork or smoked chicken wings. Use it as a tangy alternative to traditional coleslaw dressing for a zesty side dish. Serve as a dipping sauce for fried green tomatoes or crispy hushpuppies. Pair with a cold glass of sweet tea or a crisp Pilsner to balance the vinegar's acidity. Slather it on a smoked turkey sandwich with extra pickles and red onions.