Steamed Custard Buns Recipe
Steamed custard buns, also known as “nai wong bao,” are a beloved treat in many Asian cuisines, particularly in China and Southeast Asia. These soft, fluffy buns with a creamy, sweet custard filling make for a perfect snack, dessert, or even breakfast option. With their comforting texture and delightful flavor, they’ve won hearts across the globe. Whether you’re a seasoned cook or a beginner in the kitchen, this recipe will guide you to create a batch of these delicious buns at home.
A Brief History of Steamed Custard Buns:
The origins of steamed buns can be traced back to ancient China, where buns like “baozi” were first made as a portable meal for travelers and soldiers. Over time, the recipe evolved, and sweet fillings like custard became popular during the Ming and Qing dynasties. Today, steamed custard buns are a staple in dim sum restaurants and a favorite among food enthusiasts.

Steamed Custard Buns Recipe
Equipment
- Mixing bowls
- Rolling Pin
- Steamer or a pot with a steaming rack
- Parchment paper
- Whisk
- Saucepan
Ingredients
For the Dough:
- 2 1/4 cups all-purpose flour
- 2 tablespoons sugar
- 1 teaspoon baking powder
- 1 teaspoon instant yeast
- 1/2 cup warm water
- 1/4 cup warm milk
- 2 tablespoons vegetable oil
For the Custard Filling:
- 2 egg yolks
- 1/3 cup sugar
- 2 tablespoons cornstarch
- 1/2 cup milk
- 2 tablespoons unsalted butter
- 1 teaspoon vanilla extract
Instructions
- Prepare the Custard FillingIn a medium saucepan, whisk together the egg yolks, sugar, and cornstarch until smooth.Gradually add the milk while whisking to avoid lumps.Place the saucepan over medium heat and stir continuously until the mixture thickens.Remove from heat and stir in butter and vanilla extract until well combined.Transfer the custard to a bowl, cover with plastic wrap (press it directly onto the surface to prevent a skin from forming), and let it cool completely. Then, refrigerate for at least 30 minutes.
- Make the DoughIn a large mixing bowl, combine the flour, sugar, baking powder, and yeast.Gradually add warm water and milk while mixing to form a rough dough.Knead the dough on a floured surface for 8-10 minutes until it becomes smooth and elastic.Incorporate the vegetable oil into the dough, kneading until it’s fully absorbed.Place the dough in a lightly oiled bowl, cover with a damp cloth, and let it proof in a warm place for 1-1.5 hours or until it doubles in size.
- Assemble the BunsPunch down the dough to release air and divide it into 12 equal portions.Roll each portion into a ball, then flatten it into a circle about 3 inches in diameter.Place a teaspoon of chilled custard in the center of each circle.Gather the edges of the dough to seal the filling inside and shape into a smooth ball.Place each bun on a small square of parchment paper to prevent sticking during steaming.
- Steam the BunsArrange the buns in the steamer, leaving space between them to expand.Cover the steamer and let the buns rest for 15 minutes for a final proof.Steam over medium-high heat for 12-15 minutes. Avoid lifting the lid during steaming to maintain the perfect texture.
Video
Similar Recipes:
Steamed Red Bean Buns: Replace the custard filling with sweet red bean paste.
Chocolate Steamed Buns: Use a creamy chocolate ganache as the filling.
Savory Steamed Buns: Opt for a meat or vegetable filling for a savory twist.
Frequently Asked Questions About Steamed Custard Buns Recipe:
1. Can I freeze steamed custard buns?
Yes, you can freeze them after steaming. Reheat in a steamer for 5-7 minutes before serving.
2. What if I don’t have a steamer?
Use a pot with a steaming rack or place a heatproof plate on a trivet inside a large pot with water.
3. Can I use store-bought custard?
Yes, but homemade custard enhances the flavor and texture.
4. Why are my buns not fluffy?
This could be due to under-proofing, over-proofing, or insufficient kneading of the dough.
5. Can I make the dough in advance?
Yes, you can refrigerate the dough overnight. Bring it to room temperature before assembling the buns.
6. Can I use whole wheat flour?
Yes, but the buns will be denser. Mix it with all-purpose flour for better results.
7. How do I prevent the buns from sticking to the steamer?
Use parchment paper or lightly grease the steaming surface.
8. What’s the best way to store leftover buns?
Keep them in an airtight container in the fridge for up to 3 days. Reheat before eating.
9. Can I make mini custard buns?
Absolutely! Simply divide the dough and custard into smaller portions.
10. What’s the key to a smooth bun surface?
Ensure the dough is kneaded well and proofed adequately for a smooth finish.
Conclusion:
Steamed custard buns are a delightful treat that brings warmth and comfort to any table. With this step-by-step recipe, you can enjoy the satisfaction of making this traditional delicacy from scratch. Share these buns with family and friends, or savor them all to yourself—they’re too good to resist!
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