No. Blackening is more about the technique than the actual seasoning mix. Usually, it includes paprika, cayenne, onion powder, and garlic powder, and can have other ingredients too. Here's a homemade recipe for blackening seasoning, and you can usually find it store-bought, too. But truth be told, I actually used my favorite BBQ rub for this, and another seasoning mix like taco seasoning would work just fine if you don't want to buy a whole other spice mix!