The cream thins. There is cream in Basque. After refrigeration, the cream in Basque will increase moisture, become thinner and flow. Basque cake is a traditional dim sum in southwest France and Basque country. Originally, there was a traditional dim sum in Basque country. It was a simple dim sum mixed with flour and lard and made into the shape of a pig. It was very popular among travelers in the 18th century. With the change of seasons, the stuffing in it would be changed from figs to cherry jam, and every family in Basque country would have their own exclusive formula.