Combine all ingredients in a small bowl and mix thoroughly.
Transfer blend to an airtight container and store.
Notes
Make Spicier: If you prefer an extra kick of heat, you can add hot paprika or additional red pepper flakes along with the cayenne pepper.
Finer Texture: If you prefer a smoother consistency for your Cajun seasoning, pulse the mixture in a spice grinder until it reaches your desired texture.
Double the Recipe: Since this seasoning is a pantry staple, it's a great idea to make a larger batch. Double the ingredients, and you'll have plenty on hand whenever you need it.