- Combine the buttermilk, hot sauce and salt in a large bowl. Add the chicken, cover and refrigerate at least 4 hours or overnight.
- Whisk the dredge ingredients in a shallow dish. Lift each piece from the buttermilk, let the excess drip off and press it firmly into the flour on all sides.
- Set the coated chicken on a wire rack for 10 minutes so the coating sets.
- Pour oil 1 inch deep into a large cast-iron skillet or Dutch oven and heat to 350°F (175°C).
- Fry in batches without crowding, starting with thighs and drumsticks. Turn every few minutes and keep the oil between 300 and 325°F (150 to 165°C) once the chicken is in. Cook 12 to 15 minutes, until breasts reach 165°F (74°C) and dark meat reaches 175°F (79°C).
- Drain on a clean rack set over a sheet pan and sprinkle with a pinch of salt while hot.