The ducks raised in Gaoyou, Jiangsu are large in size, have tight fur, dive deeply, and have strong foraging abilities. They are generally raised in water network areas. They eat more fish and shrimp. The eggs they lay are fine in quality and rich in butter. Each one weighs an average of 105.

It is about 30 grams heavier than ordinary duck eggs.

Every year before Qingming Festival, locals pickle duck eggs and eat them after a month.

The cooked salted duck eggs are red in color and oily.

According to records, as early as the Qianlong period, Gaoyou salted duck eggs had become a delicacy at banquets.

Yuan Mei's "Suiyuan Food List·Small Menu" includes an article about "pickled eggs": Gaoyou's pickled eggs are the best, thin in color and oily, and Gao Wenduangong liked them the most.

During the banquet, take it first to honor the guests.

Put it on a plate, it is always better to cut the shell and use both yellow and white; do not keep the yellow and remove the white, otherwise the flavor will be incomplete and the oil will be dispersed.