In a large bowl combine the flour, buttermilk, egg, peanut butter, cayenne pepper, salt and ground black pepper until smooth. Meanwhile heat about 2 inches of oil in a skillet over medium-high until oil reaches a temperature of 375ºF.

Drop the pickles in the batter and coat, then drop into the oil in batches and fry until golden brown. Remove to a paper-towel lined plate and let drain. Repeat with remaining pickles and serve.