Mantova, Lombardia
Mantova's signature freshwater fish preparation: pike (luccio) from the Mincio lakes and rivers braised in a sweet-sour agrodolce sauce of white wine, white wine vinegar, onions, sultanas, pine nuts, capers, and anchovies, then served cold the next day when the sauce has set to a trembling jelly around the fish. A preparation of extraordinary historical depth — the sweet-sour-savoury combination is characteristic of medieval courtly cooking of the Gonzaga court.
Sweet, sour, salty, with deep umami from anchovy, raisin sweetness, and pine nut richness — a completely balanced medieval agrodolce that coats the freshwater fish perfectly
Pike has a pronounced muddy-mineral flavour that benefits from the acidic wine-vinegar base — the vinegar does double duty, cutting the fat and suppressing any off-notes. The sauce ingredients (sultanas, pine nuts, capers, anchovies) must be cooked separately and added to the braising liquid rather than into the pan — this allows individual control. Serving cold is not optional — the gelatin set from the long braising is the textural key.
The dish improves dramatically from the first to the second day — make 24-48 hours ahead. Carp (carpa), perch (pesce persico), or catfish can substitute for pike with excellent results. The sauce can also be used with eel, creating the variant 'anguilla in salsa'. For serving, spoon the jellied sauce over the fish and garnish with fresh capers and parsley.
Serving hot — luccio in salsa must be cold to allow the jelly to set and the flavours to fully meld. Using too much vinegar produces an over-acidic result that obscures the fish. Not cooking the fish on the bone (the collagen contributes to the jelly). Omitting the anchovies removes the deep umami bass note that anchors the sweet-sour profile.
La Cucina Mantovana — Principi e Segreti — Giovanni Goria