Preheat your grill to medium-high. Brush chicken breasts with olive oil and season with Cajun spice, salt, and pepper.
Grill chicken 5ā7 minutes per side, or until the internal temp hits 165°F. Let it rest a few minutes before slicing.
In a bowl, whisk together mayo, vinegar, horseradish, mustard, garlic, sugar, and black pepper. Thatās your Alabama white sauceāboom.
Serve grilled chicken with a drizzle (or pour, we donāt judge) of sauce. Leftovers? Wrap āem and toss in your lunch salad tomorrow.