What Is Blackened Seasoning (And How Do You Use It)? - Tasting Table
Briefly

A traditional blackened seasoning blend includes black pepper, cayenne pepper, garlic powder, onion powder, paprika, salt, dried thyme, dried basil, and dried oregano, providing earthiness and spiciness.
Homemade blackened seasoning should be stored in a cool, dry place and can last up to one year, maintaining its flavor with proper ingredient balance.
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