Ius in Siluro, in Pelamyde et in Thynno Salsis (Sauce for Salt Sheatfish, Young Tuna, or Tuna Over a Year Old)
Ius in Siluro, in Pelamyde et in Thynno Salsis (Sauce for Salt Sheatfish, Young Tuna, or Tuna Over a Year Old) is a traditional Ancient Roman recipe for a classic sauce of onion, lovage and cumin in a honey, vinegar, mustard and olive oil base thickened with hazelnuts and dates that's intended to be served with cold tuna, or sheatfish (European catfish). The full recipe is presented here and I hope you enjoy this classic Ancient Roman version of: Sauce for Salt Sheatfish, Young Tuna, or Tuna Over a Year Old (Ius in Siluro, in Pelamyde et in Thynno Salsis).
Ius in siluro, in pelamyde et in thynno salsis: piper, ligusticum, cuminum, cepam, mentam, rutam, calvam, caryotam, mel, acetum, sinape, oleum.
Translation
Sauce for Salt Sheatfish, Young Tuna, or Tuna Over a Year Old: Pepper, lovage, cumin, onion, mint, rue, filbert nuts, dates, honey, vinegar, mustard and olive oil.
Pound together the pepper, lovage (or celery) seeds, cumin, mint, rue, and mustard powder in a mortar. Add the dates and onion and pound to form a paste then work in the vinegar. Turn the mixture into a bowl and whisk in the olive oil.
Arrange your cold, cooked fish on a serving dish. Pour over the sauce and serve.