Can Muslims eat jiaozi on the solstice in winter?

There is no such thing. Hui people can eat jiaozi, but not pork stuffing. In the northern solstice, it is a custom to eat jiaozi in winter. The Winter Solstice Festival is one of the traditional festivals of the Han nationality, which originated in the Han Dynasty, flourished in the Tang and Song Dynasties and has been passed down to this day.

The winter solstice is commonly known as "Winter Festival", "Dragon Solstice Festival" and "Asian New Year Festival". As early as more than 2,500 years ago in the Spring and Autumn Period, China had observed the sun with the earth.

Extended data:

As early as 2500 years ago, in the Spring and Autumn Period, China had measured the solar terms of the winter solstice by observing the sun with the soil, and the time was about1February 22nd every year. The ancients said this about the winter solstice: As soon as the cathode arrived, the yang began to grow, the sun went south, the day was short and the shadow was long, so it was called "the winter solstice".

From winter to the sun, the sun shines directly on the tropic of Capricorn, and the sun is most inclined to the northern hemisphere, with the shortest day time and the longest night time. After this day, the sun's rays gradually moved from the tropic of Capricorn to the north, and the days became longer day by day. The winter solstice is also a sign of the coldest period in winter, which is what people often say. There has always been a saying in China that it is "cold in March, hot in dog days".