Place the tilapia on a plate. Rub 1 tablespoon of the vegetable oil onto both sides of the tilapia filets.

Spoon the homemade blackened seasoning over the fish and spread around (both sides). I use about ½ tablespoon per fish. You can adjust the seasoning amount based on your preference. The more you use, the spicier it will be and the less you use, the milder it will be.

Preheat a grill over medium high heat (approximately 400 degrees Fahrenheit).  Heat a cast iron pan on the grill.

Heat the remaining vegetable oil in the cast iron skillet.

Place tilapia on the hot cast iron pan and let it cook for 3 minutes. Time it and don’t move the fish, so it can get that beautiful blackened crust on it.

Flip and cook another 2-3 minutes until the tilapia has an internal temperature of at least 145 degrees Fahrenheit.

Remove to a separate plate and allow it to cool for a few minutes. Serve warm and enjoy!