Alabama Chicken Sandwiches with White Barbecue Sauce

Steps

1. Cut each chicken breast in half lengthwise by placing your hand on top of the breast and slicing parallel to the cutting board to make 4 thin cutlets.
2. In a large resealable plastic bag, toss the chicken breasts with the chicken seasoning (you can coat them up to 1 day in advance and chill, covered until ready to cook). Prepare the white barbecue sauce by whisking together mayonnaise, vinegar, lemon juice, horseradish, and Dijon mustard.
3. Preheat grill to high heat. Grill chicken over high heat for 10–15 min., flipping every 3–4 min. until nicely charred. Meat is done when an internal thermometer reads 165°F.
4. Spread butter evenly among the flat sides of each bun and grill just to toast. Transfer cooked chicken to a plate and allow to rest, loosely covered with foil, for 5 min. Slice cooked chicken breast and set on toasted buns with white barbecue sauce and pickles.