The fluorine atom (floating element) mentioned by the ancients refers to: glutinous rice balls.

Extension: Tangyuan, also known as Fu Yuanzi, is one of the representative snacks of Han Chinese.

Tangyuan originated in the Song Dynasty. Its outer shell is mainly composed of glutinous rice flour. It is sweet in taste and warm in nature. It belongs to the spleen, stomach and lung meridian. It is rich in carbohydrates, calcium, iron, riboflavin, niacin, etc., and has the benefit of nourishing the body.

It has the therapeutic effects of relieving qi, arresting sweat and stopping diarrhea.

The method of making glutinous rice balls is to bake the black sesame seeds in the oven, then pour them into a wall-breaking machine to break them, pour the butter into the pot, when it melts, pour in the white sugar, stir continuously until the white sugar melts, then pour in the black sesame seeds.

, stir until thick, roll the black sesame filling into small balls and freeze, pour in glutinous rice flour and lard, add 45-50℃ hot water in three times, knead into dough, knead for about 5 minutes, pull the dough into small balls

For the recipe, wrap in frozen black sesame balls, freeze overnight, take out and bag.

Rolling Yuanxiao Yuanxiao is one of the traditional snacks of the Chinese Han people and is a festive food custom.

The north "rolls" Yuanxiao, and the south "makes" glutinous rice balls. These are two foods with different preparations and tastes.