Bacalhau is salted salted cod in Portugal. It is the main ingredient of many Macanese delicacies. It can be fried, boiled, fried or grilled. Fried Bacalhau balls are a relatively common method of making. Bacalhau fish meat is mixed with potato flour, onions, green peppers and other ingredients, and fried in a pan until golden. The finished product is charred on the outside and tender on the inside, and the mouth is full of crisp and fragrance.