1 cup buttermilk
2 tsp kosher salt, divided
1 tsp cayenne
1 large egg
10 skin-on, bone-in chicken pieces (drumsticks, wings, thighs, breast)
oil, for frying
1 cup flour
½ cup cornmeal
Freshly ground black pepper, to taste
Flake sea salt (optional)
Drain 1 cup pickle juice from jar (reserve any remaining juice and pickles). Whisk together pickle juice, buttermilk, 1 tsp kosher salt, cayenne and egg. Pour into a large heavy-duty zip-top bag. Add chicken. Seal; turn bag to coat. Place in a dish. Refrigerate 4 hours and up to overnight, turning bag occasionally. Fill a large Dutch oven or pot with 2 inches oil. Heat oil to 375°F. Line a baking sheet with paper towels. In a shallow baking dish, whisk together flour, cornmeal, remaining 1 tsp kosher salt and pepper. Working with one piece at a time, remove chicken from brine, shaking off excess. Dredge in flour mixture; add to hot oil. Fry 8-10 minutes or until golden and done, turning to cook evenly (fry chicken in batches to avoid overcrowding the pan). Drain on paper towels; sprinkle with flake sea salt, if desired. Serve with pickles.