Source: Chef Dave Anderson - Famous Dave's Restaurant

1/2 cup paprika
6 tablespoons kosher salt
1/4 cup coarse ground black pepper
3 tablespoons dried basil
3 tablespoons file powder
3 tablespoons garlic powder
2 tablespoons onion powder
2 tablespoons dried oregano
2 tablespoons cayenne
2 tablespoons ground white pepper
2 tablespoons dried thyme

Mix all ingredients in a bowl. Store in airtight container. Use as rub for blackened dishes.