In a mixing bowl combine the mayonnaise, cream cheese, onion, Worcestershire sauce, Sriracha, smoked paprika, and cayenne.
Stir in the cheese and pimentos, and season with salt to taste, and add more hot sauce if desired. Pack into a container and refrigerate for at least 1 day, and up to 7.
Notes
Don’t use pre-grated cheese for this Pimento Cheese Spread—freshly grated cheese makes the mixture taste amazing—and adhere together better.