Gather all of the ingredients – garlic powder, Tony's Creole Seasoning, black pepper, ketchup, mayonnaise, and Worcestershire sauce – and add them to a small mixing bowl.
Mix until well combined, then transfer to an airtight container.
Let the sauce sit in the fridge for at least 6 hours before serving. (Leaving it overnight for 12-24 hours will give you the best flavor.) Enjoy!
