Head cheese or souse? By either name, it’s not easy to find.Yesterday, my supper plan was to eat some with cucumber slices, salt and vinegar. Yum. If you don’t know about head cheese, alternative-ly called “souse,” you’re probably not reading this column. It’s an IYKYK thing. If you don’t know what IYKYK means, ask someone who’s never eaten head cheese.I looked for...