One piece at a time, remove the chicken from the marinade and wipe off the excess buttermilk. Then place the chicken piece in the flour dish and turn it to coat all sides, and press the flour mixture firmly into the chicken.
If you prefer an extra-crispy crust, dip the chicken back into buttermilk and then into the flour. Place on a plate and set aside for 30 minutes.
Pour 1-2 inches of oil into a large heavy-bottomed or cast-iron skillet (no more than ½ way up the side of the pan). Heat the oil to 350℉ (177℃).
Drop a small pinch of the breading into the oil. If it sizzles right away and rises to the surface within a second or two, the oil is ready. If it sinks or barely bubbles, it needs more time, and if it browns immediately, the oil is too hot.
Carefully place chicken into the hot oil, with space between each piece.
After 6–8 minutes, check the bottom of one piece of chicken. It should be a deep golden brown before you turn it to cook the other side.
Once the internal temperature reaches 160°F (71°C), remove the fried chicken from the oil, as it will continue to rise to a safe temperature while resting. The total cook time is usually 15–20 minutes, depending on the size of the pieces.
Carefully remove the chicken and place it on a wire rack with parchment paper or a baking sheet under the rack. Let it rest for 10 minutes, then serve.
Notes
A good thermometer is really helpful in keeping an eye on the oil temperature. The oil should be between 325°F and 350°F (163°C and 177°C) as you cook.If you’re cooking multiple batches, hold the finished chicken on a wire rack in a 200°F (93°C) oven for up to 30 minutes. This keeps it hot while preserving the crisp coating.Leftover fried chicken can be stored in the refrigerator for up to 3 days. Reheat on a wire rack in a 375°F (191°C) oven for 12–15 minutes, or until heated through to 165°F (74°C). This helps restore the crisp texture.The nutritional calculations include the whole amount of buttermilk and a 10% absorption factor for the oil. The actual amount of these ingredients consumed will vary.