In a large bowl, mix the flour with all the herbs and spices, then set aside.
In a separate bowl, whisk together the buttermilk and egg until well combined.
Add the chicken pieces, coat thoroughly, and cover the bowl with plastic wrap or a lid.
Let the chicken marinate for at least 30 minutes or refrigerate overnight for enhanced flavor.
Meanwhile, preheat the oven to 175°F, line a baking sheet with foil, and place an oven-safe wire rack on top.
Heat about 3 inches of oil in a Dutch oven or an electric fryer, ensuring it reaches 350°F using a thermometer.
Once at the temperature, lower the heat slightly.
Remove a chicken piece from the buttermilk, let excess liquid drip off, then dredge it in the seasoned flour, pressing firmly for an even coating.
Shake off excess flour and carefully place the chicken into the hot oil.
Fry in small batches, about three to four pieces at a time, for 12 minutes, turning halfway, until golden brown.
Transfer cooked pieces to the prepared baking sheet and keep them warm in the oven.
Allow the oil to return to 350°F before frying the next batch.
Continue the dredging and frying process for the remaining chicken, ensuring each piece reaches an internal temperature of 165°F.
Before serving, sprinkle with MSG for an extra flavor boost, or skip this step if preferred.