Une recette donnée sur le site http://timetravellerkids.co.uk/news/make-some-roman-honey-pastries/ :
This is a recipe based on a very popular Roman sweet pastry which had the disgusting name of placenta (also the name for yukky afterbirth). It was like a lasagne made with a cheese and honey mixture layered with very thin pastry and baked in a pastry crust on a bed of bay leaves. We know this because Cato the Elder wrote the recipe down.
Our first attempts were based on this version, but it turned out very soggy and I could see why the original had a harder pastry crust.