Dissolve the salt in a bowl of lukewarm water. There should be enough water inside to cover the chicken completely. Then put the chicken in it and let it rest for at least 30 minutes - 1 hour.
Mix buttermilk with egg and a teaspoon of salt in a large mixing bowl. Mix the flour with cayenne pepper, paprika powder, garlic powder and white pepper in another bowl. Add a little salt.
Heat oil in a pot until the temperature reaches about 175°C. The pot should be big enough to hold both chicken legs. If you increase the quantities, do not fry more than 2 to 3 pieces at a time.
Take the chicken out of the brine, drain and pat dry.
Now we start with the breading. Dip the chicken in buttermilk and cover it completely with it, then toss it in the flour mixture and cover it completely with the flour. Press the flour on the chicken and get it fully covered. This procedure is repeated once again. So again into the buttermilk and again cover with the flour mix. Then carefully shake off the excess.
Carefully put it into the hot oil. Fry the chicken for about 25 minutes. If it turns brown too quickly, reduce the heat.
Take it out carefully and place it on a rack to drain for a few minutes. Then serve with sweet potato. Bon Appetit!