Cajun Spice Rub by CI. Makes about 1 cup. This make-ahead spice rub is delicious on grilled chicken; it makes enough to season about 16 breasts. If stored in an airtight continer, the rub will remain potent for up to three months. INGREDIENTS 1/2 cup sweet paprika, 2 tablespoons kosher salt, 2 tablespoons garlic powder, 1 tablespoon dried thyme, 2 teaspoons ground celery seed, 2 teaspoons ground black pepper, 2 teaspoons cayenne pepper. Combine all ingredients in small bowl.