Combine all ingredients for the brine. Place chicken in brine. According to the recipe, you should brine for 12 hours and no more. I ended up brining for 7 hours.
Pat dry. Let rest for 1.5 hours.
Combine all coating ingredients except for the buttermilk.
Fill a dutch oven or pot with enough oil so the chicken will be fully submerged.
Heat oil to 320 F for thighs and drumsticks. Heat oil to 340 F for breasts and wings.
Gather 3 shallow dishes and line them up side by side. Put half of the coating in the 1st and 3rd dish. Pour the buttermilk into the center dish.
Right before frying, dip a piece of chicken in the coating, then the buttermilk, then once more in the coating.
Deep fry wings for 6 minutes and breasts for 7 minutes. Fry thighs and drumsticks for 11-12 minutes. Fry 3-4 chicken pieces at a time. Don't overcrowd the pot, make sure there is oil circulating around the chicken pieces.
Place on a paper towel lined cooling rack. Sprinkle on sea salt if desired.
For waffles, combine all ingredients. Grease a waffle iron and cook waffles according to iron manufacturer's instructions.
Serve fried chicken with waffles, maple syrup, and desired toppings.
Notes
Serve fried chicken with waffles, maple syrup, and desired toppings.
Recipe from Chef Thomas Keller. Waffle recipe from NYT Cooking.