Creating Crispy Bang Bang Chicken involves a straightforward process that will yield gigantic flavors. Follow these steps:

1. Marinate Chicken: Cut the chicken breasts into bite-sized pieces and place them in a bowl. Pour the buttermilk over the chicken, cover, and refrigerate for at least 30 minutes (or up to 2 hours for best results).

2. Prepare Breading: In a separate bowl, mix the flour, garlic powder, onion powder, paprika, cayenne pepper, salt, and black pepper.

3. Heat Oil: In a deep skillet or large frying pan, heat about 1 inch of vegetable oil over medium-high heat until it reaches 350°F (175°C).

4. Coat Chicken: Remove the chicken from the buttermilk, allowing excess to drip off. Dredge the chicken pieces in the flour mixture, ensuring all sides are well-coated.

5. Fry Chicken: Carefully place the coated chicken pieces in the hot oil, working in batches to avoid overcrowding. Fry until golden brown, about 5-7 minutes per side. Cook until the internal temperature reaches 165°F (74°C).

6. Drain Chicken: Once cooked, remove the chicken from the oil and place it on a plate lined with paper towels to absorb excess oil.

7. Make Bang Bang Sauce: In a mixing bowl, combine the mayonnaise, sweet chili sauce, sriracha, honey, and lime juice. Mix until smooth and evenly combined.

8. Coat Chicken in Sauce: In a large bowl, add the fried chicken pieces and drizzle with the Bang Bang Sauce. Toss gently until all the chicken is well-coated.

9. Garnish: Transfer the coated chicken to a serving platter. Garnish with chopped green onions and sesame seeds, if desired.

10. Serve Immediately: Enjoy your Crispy Bang Bang Chicken while it’s warm and crispy.