As is very aptly put by the folks over at Food52, you’ll find a million different ways that are “the only way to make pimento cheese” — some add cream cheese, others Worcestershire sauce, minced onions, pickles, celery salt. This is a simple starting point, and makes the pimento cheese I know and love, but feel free to experiment from here.
Find it online: https://tworedbowls.com/2014/05/21/pimento-cheese/