Prepare marinade. In a bowl, stir together the buttermilk and seasonings. Add the sliced chicken and marinate for at least 30 minutes to overnight.
Make flour dredging. In a bowl, combine the flour, cornstarch, and seasonings; stir to combine.
Make the slaw. Combine the dressing for the coleslaw and toss with the slaw mix; refrigerate until ready to use.
Make hot honey sauce. In a bowl, combine the ingredients for the hot honey sauce.
Dredge chicken. Take the chicken and dredge it in the flour mixture, then back in the buttermilk mixture, and then in the flour mixture again. (Tip: If you want extra crispy chicken, do this a third time.)
Fry chicken. Heat about 2 inches of oil to 325°F-350°F. Add the chicken and cook 4-6 minutes per side, until golden brown on the outside and 165°F on the inside.
Assemble. Toast bread buns. Add a chicken sandwich to the bun, and drizzle generously with the hot honey sauce. Top with the coleslaw and pickles.
Serve and enjoy, friends.