Blackened Tilapia is Cajun-styled fish seared in butter in a cast iron skillet till it acquires a black tinge. The tilapia is first seasoned with a mixture of black pepper, white pepper, cayenne pepper, oregano, thyme, garlic powder, onion powder, and celery seeds. It is then seared in ample butter in a cast iron skillet till the spice on its surface gets charred. The fish is then baked till it attains a flaky texture. Blackened tilapia is commonly served with butter.