The original recipe used soybeans; we are using chickpeas, which is another Old World bean. Rather than liquamen, which was a sauce made from rotted fish, we are using balsamic vinegar, which was also used in Ancient Roman cuisine, as a salty-tart liquid.
Beans from Baiae are served cooked with liquamen, oil, fresh coriander, cumin, and chopped leek.
Apicius; Katja Orlova (SCA)