Homemade pimiento cheese spread is easy to make, with Cheddar cheese, diced pimiento, mayonnaise, onion, and pepper.
Combine cheese and half of Parmesan cheese. Mix together lightly. Knead in 4 T. of mayonnaise until mixture is creamy and smooth.
Work in remaining cheese, garlic, onion, pimientos and 1 T. reserved pimiento liquid, dash of Cayenne pepper and small pinch of dry mustard. Knead just enough to mix well; add remaining mayonnaise.
Let stand 30 minutes.
Serve on bread or with crackers.