Kykeon: Ancient Greek barley with wine

Kυκεών (kykeon) was an Ancient Greek drink based on barley, mentioned a few times in Homer's Iliad and Odyssee, but also in other Greek written sources. It's preparation seems to have varied quite a bit. In summary, in was a mix of a barley water, wine and herbs such as pennyroyal, sometimes honey, sometimes even grated goat cheese. Sometimes it is describes as a drink, sometimes as a food. My impression is that there were two main variations of kykeon: one, maybe the original version, more porridge-like, nourishing (here the cheese adds up nicely), and the other one a refreshing, somewhat alcoholic cocktail which, in the context of the Eleusinian Mysteries, could eventually be fortified with psychoactive substances (although this is disputed).
Alternatively it is possible that the liquid and the more solid kykeon are two products from the same process: to prepare barley water one boils the barley, strains it and mixes the water with other ingredients. And what to do with the solids? A porridge, obviously, that could be flavored with wine, honey, herbs and cheese, too. (A little salt doesn’t hurt either.) And maybe both was called kykeon.
The chilled kykeon drink makes for a refreshing summer sundowner.

You need: pearl barley, red wine, honey, a little fresh mint (optional), grated goat cheese (optional)