01 - 
                Rinse catfish fillets with cold water and pat dry thoroughly using paper towels.
              
              
              
                02 - 
                In a large shallow bowl, mix together cornmeal, all-purpose flour, salt, black pepper, and cayenne pepper until well blended.
              
              
              
                03 - 
                Pour buttermilk into a separate bowl. Dip each catfish fillet into the buttermilk, ensuring all sides are evenly coated.
              
              
              
                04 - 
                Dredge the buttermilk-coated fillets in the cornmeal mixture, pressing gently so the coating adheres.
              
              
              
                05 - 
                In a deep skillet, heat vegetable oil over medium-high heat to 350°F. Test readiness by sprinkling a pinch of cornmeal into the oil; it should immediately sizzle.
              
              
              
                06 - 
                Carefully lay coated catfish fillets into the skillet without crowding. Fry for 3 to 5 minutes per side, or until golden brown and crispy.
              
              
              
                07 - 
                Transfer fried fillets to a plate lined with paper towels to drain excess oil. Serve hot with southern side dishes.