01 - Heat 2 inches of vegetable oil in a deep skillet or heavy-bottomed pot to 350°F.
02 - In a shallow bowl, combine flour, cornmeal, garlic powder, paprika, cayenne pepper if using, salt, and black pepper; whisk until evenly mixed.
03 - In a separate bowl, whisk together eggs and buttermilk until smooth.
04 - Working in batches, dip each pickle slice first into the dry mixture, then the wet mixture, then again into the dry mixture, ensuring even coating.
05 - Carefully fry coated pickles in hot oil, 2 to 3 minutes per side, until golden brown and crisp; do not overcrowd the pan.
06 - Remove fried pickles with a slotted spoon and drain on paper towels. Serve hot with preferred dipping sauce.