Place the Cajun Dynamite Dust seasoning on a flat plate. Coat each catfish fillet and shrimp with seasoning. Using your hands, rub the seasoning into the fish and shrimp.

Heat a cast iron skillet over high heat until very hot, add butter and heat until sizzling. Add catfish and shrimp and pan fry until blackened on both sides, turning once.

OR (and Dave recommends this second method unless you have a high-draft commercial type exhaust hood on your stove)

Pan fry catfish and shrimp as directed over hot coals on a grill outside. Serve on a bed of  Red Beans and Rice.