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.
½ cup mayonnaise, ¼ cup ketchup, ¼ teaspoon Worcestershire sauce, ½ teaspoon black pepper, ½ teaspoon garlic powder, ¼ teaspoon Tony Chachere's Creole Seasoning