In mitulis (Mussels) is a traditional Ancient Roman recipe for a dish of mussels in a white wine both flavoured with fish sauce and sweet wine. The full recipe is presented here and I hope you enjoy this classic Ancient Roman version of: In mitulis.
Wash and clean the mussels. Meanwhile place the liquamen, wine, passum, water and spices in a pan. Bring to the boil, reduce to a simmer and add the leek. Cook for 20 minutes then add the mussels and cover. Allow to steam for ten minutes and transfer the mussels to a serving bowl (discarding any that have not opened). Ladle the broth over them and serve immediately.