Six smooth, round white glutinous rice balls float in a clear, lightly sweet syrup in a white porcelain bowl, one cut open to show a glossy jet-black sesame filling, with a white porcelain spoon resting in the bowl.
Lai Tangyuan are Chengdu glutinous rice balls with a black sesame filling, served in a lightly sweet soup. Lai Yuanxin initially sold them from a shoulder pole and later opened a shop at the north end of Chunxi Road; the August 13, 2025 account and several English blogs give 1894 as the starting year, but lack primary-text support, so the year is only a retelling. A May 26, 2025 report from Sichuan mentions packaged products.
What
Lai Tangyuan are Chengdu glutinous rice balls with a black sesame filling, boiled and served in a lightly sweet soup. A bowl holds 4, with white skins that do not stick; black sesame is the traditional Sichuan filling and the trademark of Lai Tangyuan.2,3,5,6
When
Lai Tangyuan was founded by Lai Yuanxin, who initially sold from a shoulder pole in the streets and later opened a shop at the north end of Chunxi Road. The founding year is commonly given as 1894, but the August 13, 2025 account and several English blogs cite no primary text, while a 2014 travel introduction has an illegible year; the founding year remains unsettled and is given only as a retelling.1,2,3
Where
Chengdu. Sales began from a shoulder pole in the streets, followed by a shop at the north end of Chunxi Road; there is also a shop on Zongfu Road.1
How
Glutinous rice with a little long-grain rice is soaked for 2 days and milled very fine for the skin. Toasted black sesame is mixed with sugar, lard and flour, then cut into small cubes for the filling. The balls are wrapped and boiled, cold water is added once they float, and they are served in sweet soup.3
Why
Its popularity is attributed to finely milled rice and frequent water changes; this explanation is a retelling without primary-text support.3
Impact and influence
A May 26, 2025 report from Sichuan mentions packaged products from Lai Tangyuan and other Chengdu snack brands, including Zhong Shuijiao and Long Chaoshou.4
One blog says the young Lai Yuanxin lost his job in a restaurant, borrowed money from his cousins and turned to selling tangyuan. He is said to have milled the rice very fine and changed the water often, and slowly won regular customers.
Told in: A Chengdu account, retold by an English-language blog that says it is adapted from Baidu Baike. No dated text was found.
This is a simplified home version, not the traditional restaurant method.
This is the simpler way I make it at home. It is an ordinary black sesame tangyuan, not the recipe of the Lai Tangyuan shop, and I do not know how the shop makes it. I looked at two published recipes: one is written in the style of Lai Yuanxin and soaks the rice for two days and mills it, and the other is an ordinary black sesame tangyuan made straight from glutinous rice flour. I use flour and skip the milling. The amounts for the dough and filling follow the second recipe, and the soup and timings are my own choices at home.
Ingredients
Glutinous rice flour 120 g
Just-boiled water, for the dough 95 g
Black sesame seeds 40 g
Sugar, for the filling 40 g
Lard 30 g, softened at room temperature
Water, for the filling 1 tablespoon
Water, for the sweet soup 500 ml
Sugar, for the sweet soup 30 g
Steps
Toast the black sesame in a dry pan on low heat and switch off as soon as it smells fragrant; do not let it burn. Let it cool, then grind it in a mortar.
Mix the sesame powder with 40 g of sugar, the lard and 1 tablespoon of water into a filling that holds together when pinched. Divide it into 12 portions of about 9 g, roll them into balls, and chill until firm.
Put the flour in a bowl, pour in the 95 g of just-boiled water, and stir with chopsticks. When it has cooled a little, knead it into a smooth dough, adding a spoonful of water if it is dry.
Divide the dough into 12 pieces, flatten each, wrap a portion of filling inside, and pinch it shut and roll it round. Dust your hands with a little glutinous rice flour so the dough does not stick.
Bring a pot of water to a boil, add the balls, and nudge them apart with the back of a spoon. Cook until all of them float, then 2 minutes more, adding a splash of cold water if the water boils too hard. Cut one open: it is done when there is no white raw core.
In a separate small pot, bring 500 ml of water and 30 g of sugar to a boil, add the lifted-out balls, and eat them hot, taking care because the filling inside is very hot.
Tips
I switch off as soon as the sesame smells fragrant, because over-toasted sesame turns bitter; this is my own choice.
I chill the filling until firm before wrapping, which makes it easier to wrap; this is how I do it at home.