Xijiade There are no Spanish mackerel in jiaozi now. Personally, I think jiaozi, the best Spanish mackerel in Dalian, is Mr. Bao's seafood dumpling restaurant behind Xi 'an Road Science and Technology Square. His Spanish mackerel jiaozi is delicious, with unique taste and good environment. It is a bit expensive, because his family mainly sells seafood jiaozi, besides Spanish mackerel, there are also sea urchins, yellow croaker and double shrimp.