In a medium bowl, combine the cream cheese, mayonnaise, sour cream, garlic powder, onion powder, Worcestershire sauce, black pepper, and cayenne pepper. Mix until smooth.
Add the Parmesan cheese and mix until well blended.
Refrigerate for at least an hour before serving.
Interesting Facts
This dip is a great way to use up leftover Parmesan cheese.
It is a great addition to a cheese plate.
It can be made ahead of time and stored in the refrigerator for up to three days.