Ius Alexandrinum in Pisce Asso (Alexandrine Sauce for Baked Fish)
Ius Alexandrinum in Pisce Asso (Alexandrine Sauce for Baked Fish) is a traditional Ancient Roman recipe for a classic sauce of onion, damson plums and spices in a wine, vinegar, stock and olive oil base that's intended to be served with baked fish. The full recipe is presented here and I hope you enjoy this classic Ancient Roman version of: Alexandrine Sauce for Baked Fish (Ius Alexandrinum in Pisce Asso).
Combine the black pepper, lovage (or celery) seeds, cumin seeds, oregano and celery seeds in a mortar. Pound to grind then work in the shallots and plums and pound together. Mix in the mulsum, white wine vinegar and defritum then turn into a pan and whisk in the olive oil, liquamen and fish stock. Bring to a boil, reduce to a simmer and cook gently for about 25 minutes, or until thickened.
Carefully transfer the fish to a serving dish, pour over the sauce and serve immediately.