Duke's Southern Sauces Bayou Remoulade 10 oz Bottle Spiked with Cajun/Creole flavors, this savory mayonnaise-based finishing sauce is loaded with a harmonizing blend of black, white and cayenne peppers, hot sauce, Dijon mustard, garlic, onion, and lemon. Itâs an easy way to add twang to your next poâ boy or popcorn shrimp.