catfish recipe

- 4 catfish fillets - 1 cup buttermilk - 1 cup cornmeal - 1/2 cup all-purpose flour - 1 teaspoon salt - 1/2 teaspoon black pepper - 1/2 teaspoon paprika - 1/2 teaspoon garlic powder - 1/2 teaspoon onion powder - 1/2 teaspoon cayenne pepper (optional, for a spicy kick) - Vegetable oil, for frying - Lemon wedges, for serving - Fresh parsley, chopped (for garnish)