Acqua pazza

The term acqua pazza is used in Italian cuisine to refer to a recipe for poached white fish, or to simply refer to the lightly herbed broth used to poach it. There are many different variations of this sauce, from light broths, to thick tomato based sauces, which have been found on all types of seafood (not just the traditional white fish) and even chicken. This dish is comparable to other Italian dishes, such as cacciucco and guazzetto. While the dish originated from fishermen of the Neapolitan area, who would sauté the catch of the day in seawater together with tomatoes and extra virgin olive oil, the term itself most probably originated from Tuscany; mezzadria peasants would make wine but had to give most to the landlord, leaving little left for them to drink. The peasants were resourceful, however, and mixed the stems, seeds, and pomace left over from the wine production with large quantities of water, brought it to a boil, then hermetically sealed it in a terracotta vase and fermented it for several days. Called "l'acquarello" or "l'acqua pazza", the result was a water barely colored with wine, which the fisherman may have been reminded of when seeing the broth of the dish, colored slightly red by the tomatoes and oil. Acqua pazza became a very popular dish with tourists on Capri island in the 1960s.

Source: Wikipedia