01 -
In a medium bowl, combine mayonnaise, white vinegar, white pepper, Creole mustard, salt, sugar, pressed garlic, horseradish, lemon juice, and paprika. Whisk until smooth and well combined. Cover and refrigerate to allow flavors to meld.
02 -
Heat vegetable oil in a large skillet over medium-high heat. Season chicken tenders with salt and pepper on both sides. Cook for about 4 minutes on first side until golden brown, then flip and cook for approximately 3 more minutes until chicken is cooked through.
03 -
When flipping the chicken, add sliced shallots to the pan. Stir occasionally for even cooking alongside chicken until soft and slightly caramelized.
04 -
Transfer cooked chicken to a cutting board and cool slightly. Chop into bite-sized pieces and place in a mixing bowl. Add cooked shallots, 1 cup of shredded cheese, and about 1/2 cup white BBQ sauce. Mix thoroughly until all chicken pieces are evenly coated.
05 -
Preheat oven broiler. Slice French bread rolls horizontally down the middle, leaving a hinge so subs stay together, creating a pocket for filling. Open rolls and place on a baking sheet.
06 -
Divide chicken mixture evenly between the two sub rolls, stuffing into the pocket. Pack filling densely for hearty sandwiches. Sprinkle remaining 1/2 cup of shredded cheese over both sandwiches.
07 -
Place baking sheet with assembled subs under the broiler. Watch carefully for 2-3 minutes until cheese is melted and bubbly, and bread edges are toasted.
08 -
Remove hot subs from oven and drizzle with additional white BBQ sauce. Cut each sub in half crosswise to make four servings. Serve immediately with extra sauce for dipping.