Marinate the chicken: In a large bowl, combine the buttermilk, hot sauce, salt, and pepper. Add the chicken breasts and ensure they are fully coated. Cover and refrigerate for at least 30 minutes, or up to overnight.
Prepare the coating: In a separate bowl, combine the flour, paprika, garlic powder, onion powder, and cayenne pepper (if using). Mix well.
Coat the chicken: Remove the chicken from the buttermilk marinade and let any excess drip off. Dredge each chicken breast in the flour mixture, ensuring it is fully coated. Press the flour gently to adhere.
Bake the chicken: Preheat oven to 400°F (200°C). Place the coated chicken breasts on a baking sheet lined with parchment paper. Bake for 25-30 minutes, or until the chicken is cooked through and the internal temperature reaches 165°F (74°C).
Make the hot honey glaze: While the chicken is baking, prepare the glaze. In a small saucepan, combine the honey, hot sauce, apple cider vinegar, and melted butter (if using). Heat over low heat, stirring occasionally, until the honey is melted and the ingredients are combined.
Glaze the chicken: Once the chicken is cooked, brush each chicken breast generously with the hot honey glaze. You can also drizzle any remaining glaze over the chicken.
Serve: Serve the baked crunchy hot honey chicken immediately. It pairs well with sides like mashed potatoes, roasted vegetables, or a salad.