Brodetto fanese is a traditional version of a brodetto originating from Fano, located in the region of Marche. It's made with a combination of onion, tomatoes, white wine vinegar, olive oil, and fish and seafood such as squid, monkfish, mullet, mantis shrimp, shrimps, mussels, and clams.

The onions are sautéed in olive oil until translucent, followed by the addition of tomato purée and concentrate to the pan. The combination is simmered with vinegar, salt, and pepper, and the fish and seafood are then also added to the pan and cooked until fully done and the clams and mussels are open.