Egg custard steamed buns, also known as lai wong bao, are a popular Cantonese dessert. These buns are filled with a creamy and sweet egg custard filling. The dough is made from a combination of flour, yeast, sugar, and water, which is then steamed to perfection. The result is a soft and fluffy bun with a deliciously rich and smooth filling. Egg custard steamed buns are a great option for those with a sweet tooth and can be enjoyed as a dessert or a snack.