Creating the perfect BBQ Chicken Sandwich involves a few straightforward steps. Follow these instructions for a delicious outcome:

1. Marinate the Chicken: Place chicken breasts in a bowl or zip-top bag. Pour in the barbecue sauce, coating evenly. Allow to marinate for at least 30 minutes in the refrigerator. For deeper flavor, marinate longer if possible.
2. Preheat the Grill: Preheat your grill to medium-high heat (about 375°F to 400°F).
3. Prepare the Coleslaw: In a separate bowl, mix the coleslaw mix with mayonnaise. Season with salt and pepper to taste. Set aside to let the flavors meld.
4. Grill the Chicken: Remove the chicken from the marinade, letting the excess drip off. Place on the grill and cook for 6-8 minutes per side, or until the internal temperature reaches 165°F. Brush occasionally with extra barbecue sauce while grilling for added flavor.
5. Toast the Buns: During the last few minutes of grilling, place the hamburger buns cut-side down on the grill to toast lightly, approximately 1-2 minutes.
6. Assemble the Sandwich: Once the chicken is cooked, remove it from the grill and let it rest for 5 minutes. Slice the chicken if desired. Layer the grilled chicken on the bottom bun, followed by coleslaw, and any additional toppings you prefer.
7. Serve: Place the top bun on the assembled sandwich and serve immediately while warm.

With these steps, you’ll have an amazing BBQ Chicken Sandwich ready to be devoured!