Blackened fish is a popular cooking method that involves seasoning fish fillets with a blend of spices, typically including paprika, cayenne pepper, garlic powder, and onion powder. The seasoned fish is then cooked in a hot skillet, often cast iron, which creates a charred, flavorful crust while keeping the inside moist and tender. This technique originated in the southern United States, particularly associated with Cajun and Creole cuisines. It is commonly used with various types of fish, such as catfish, tilapia, or snapper, and is often served with sides like rice or vegetables, enhancing the overall meal experience.