Nai Wong Bao Custard Buns – Culinary Chase
There’s something delightful about enjoying your nai wong bao custard buns with different accompaniments. A light, fresh vegetable stir-fry pairs beautifully with the soft, sweet goodness of the buns. The crunch of fresh bok choy and snap peas can contrast nicely with the custard, creating a delightful experience on your palate.
A warm, comforting cup of jasmine tea complements this dish, enhancing its delicate flavors. If you’re in a savory mood, consider serving it alongside a slightly spicy dipping sauce made from soy sauce, chili oil, and garlic. And let’s not forget dessert! A light mango pudding or a bowl of sweetened coconut milk with fresh fruit can wrap up your meal perfectly.

Gather around, food lovers! Today, we’re diving into the wonderful world of nai wong bao custard buns. If you’ve ever tasted these warm, fluffy buns bursting with a sweet custard center, then you know exactly what I’m talking about.
These little treasures are not just a treat; they are a testament to the beauty of dim sum cuisine, bringing smiles to faces all around the table. Whether you enjoy them for breakfast, as a snack, or as part of an elaborate feast, nai wong bao custard buns are a versatile delight.
Join me as we explore what makes this dish standout, the steps to create it, and tips to ensure your success in the kitchen. Let’s roll up our sleeves and get started!
What Are Nai Wong Bao Custard Buns?
Nai wong bao, also known as custard buns, are traditional Cantonese steamed buns filled with creamy custard made from salted egg yolk and butter. These buns boast a soft, pillowy exterior, perfectly complementing their rich and sweet filling. Commonly found in Chinese dim sum restaurants, they have become popular well beyond their origin.
The bun’s name literally translates to “custard bun”, indicating its sweet and creamy interior. They are a staple snack in many Asian cultures and are loved by both locals and visitors alike. Understanding the origins and traditional preparation of nai wong bao adds to the appreciation of this dish.
You will also like the following Dessert recipes!
- Qdoba Chocolate Chip Cookie Recipe
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- Old fashioned fruit cocktail cake
What is the Flavor Profile of This Dish?
The flavor profile of nai wong bao is a delightful blend of sweetness and richness. The filling, typically made from custard powder, sugar, and egg yolks, creates a creamy, slightly salty flavor, especially if duck egg yolks are used. The contrast between the warm, fluffy bun and the creamy custard creates an experience that dances on the taste buds.
The sweet custard filling contrasts beautifully with the dough. You’ll find that the softness of the bao itself is subtle, allowing the custard flavors to shine through without overwhelming your senses. It’s a harmonious balance, making every bite a delightful experience.
What Makes This Recipe Different from Other Nai Wong Bao Custard Buns?
While many recipes exist for nai wong bao, what sets this one apart is the inclusion of specific ratios and ingredients that balance flavor and texture. Using both cake flour and baking powder contributes to the lightness of the dough, while the warm water is crucial for achieving that perfect silky texture in the buns.
Moreover, incorporating a hint of vanilla to the custard elevates the flavor. This method emphasizes traditional techniques while also allowing for some creative flexibility. Plus, using duck egg yolks offers a richer taste compared to regular chicken egg yolks, enhancing the overall custard experience.
Ingredients You’ll Need
To make these luscious nai wong bao custard buns, here’s what you’ll need:
For the Filling:
- 30 g whole milk powder – Adds creaminess (you can substitute with oat or almond milk powder if required)
- 3 yolks from hard-boiled eggs, or cooked salted duck egg yolks
- 1 teaspoon custard powder – Brings richness
- 50 g unsalted butter – Soften this for easy mixing
- 30 g fine sugar (use 40 g if opting for salted egg yolks)
- ¼ teaspoon vanilla extract (optional)
For the Dough:
- 1 teaspoon instant yeast
- ¼ teaspoon salt – Balances sweetness
- 90 g warm water
- 1 teaspoon baking powder
- 175 g cake flour or bao flour (all-purpose flour works here too)
- 1 tablespoon granulated sugar

Step-by-Step Directions
Creating nai wong bao custard buns is an enjoyable and rewarding process. Here’s how to do it:
Step 1: Make the Custard Filling
Start by mixing the milk powder, egg yolks, custard powder, and soft butter in a bowl. Blend in the sugar and the optional vanilla extract. Combine everything until smooth and creamy. Once mixed, cover it and chill in the fridge for about 30 minutes. This helps it firm up a bit, making it easier to work with later.
Step 2: Prepare the Dough
In a separate bowl, combine the warm water and instant yeast. Let it sit for about 5 minutes until it bubbles up (this means the yeast is active). Now, mix in the flour, salt, and baking powder. Knead until you achieve a soft, elastic dough. Cover it with a damp cloth and let it rise in a warm spot for about an hour, or until it doubles in size.
Step 3: Shape the Buns
After the dough has risen, punch it down and divide it into equal portions (about 10-12 pieces work well). Roll each piece into a ball, then flatten it into a circle using your hands or a rolling pin.
Step 4: Fill the Buns
Grab the chilled custard filling from the fridge. Take a small amount (about a teaspoon) and place it in the center of each dough circle. Carefully fold the edges over the filling and pinch to seal tightly, ensuring none of the custard spills out.
Step 5: Steam the Buns
Place the buns on parchment paper squares in a steamer basket. Ensure they are spaced out to allow for expansion. Cover and steam over boiling water for about 10-15 minutes. You’ll know they’re ready when they’re puffy and the dough looks glossy.
Step 6: Enjoy!
Once done, carefully remove the buns from the steamer and let them cool slightly. Your nai wong bao custard buns are now ready to be devoured!
Tips on Making Nai Wong Bao Custard Buns
Creating the perfect nai wong bao custard buns might seem daunting, but here are some tips to ensure success:
- Use Fresh Ingredients: Always check the expiration dates on your yeast and custard powder. Fresh ingredients yield better results!
- Don’t Overwork the Dough: Knead until just smooth. Overworking can harden the texture.
- Warm Environment for Rising: Ensure a cozy, draft-free spot for the dough to rise. A slightly warm oven works great.
- Seal the Buns Well: Ensure your buns are tightly sealed to prevent leakage during steaming.
- Steam with Care: Avoid lifting the lid during steaming to maintain temperature and moisture.
Nutrition Information
Here’s a quick glance at the nutrition values for one nai wong bao custard bun (rough estimates):
- Calories: Approximately 150
- Fat: 6 g
- Carbohydrates: 20 g
- Protein: 3 g
Note: Nutritional values can vary based on specific ingredients used.
How Can I Store This Nai Wong Bao Custard Buns?
These buns can be stored easily. Allow them to cool completely before placing them in an airtight container. They can be kept at room temperature for up to a day or stored in the refrigerator for up to three days. For longer storage, consider freezing. Place the cooled buns in a freezer-safe bag, where they will keep for about a month. When you’re ready to enjoy, steam them directly from the freezer for about 15-20 minutes.

Substitute Options for the Ingredients
Sometimes, you might not have all the ingredients on hand. Here are some doable substitutes:
- Whole Milk Powder: If you don’t have this, you can use coconut milk powder. It gives a nice flavor too.
- Custard Powder: In a pinch, vanilla pudding mix can act as a substitute, providing sweetness and creaminess.
- Unsalted Butter: You can replace unsalted butter with margarine or for a dairy-free option, use coconut oil.
- Cake Flour: If cake flour isn’t available, you can create a substitute by mixing all-purpose flour with a bit of corn starch to make it lighter.

Nai Wong Bao Custard Buns
Equipment
- Bowl
Ingredients
For the Filling:
- 30 g whole milk powder – Adds creaminess you can substitute with oat or almond milk powder if required
- 3 yolks from hard-boiled eggs or cooked salted duck egg yolks
- 1 teaspoon custard powder – Brings richness
- 50 g unsalted butter – Soften this for easy mixing
- 30 g fine sugar use 40 g if opting for salted egg yolks
- ¼ teaspoon vanilla extract optional
For the Dough:
- 1 teaspoon instant yeast
- ¼ teaspoon salt – Balances sweetness
- 90 g warm water
- 1 teaspoon baking powder
- 175 g cake flour or bao flour all-purpose flour works here too
- 1 tablespoon granulated sugar
- 1 tablespoon granulated sugar
Instructions
Step 1: Make the Custard Filling
- Start by mixing the milk powder, egg yolks, custard powder, and soft butter in a bowl. Blend in the sugar and the optional vanilla extract. Combine everything until smooth and creamy. Once mixed, cover it and chill in the fridge for about 30 minutes. This helps it firm up a bit, making it easier to work with later.
Step 2: Prepare the Dough
- In a separate bowl, combine the warm water and instant yeast. Let it sit for about 5 minutes until it bubbles up (this means the yeast is active). Now, mix in the flour, salt, and baking powder. Knead until you achieve a soft, elastic dough. Cover it with a damp cloth and let it rise in a warm spot for about an hour, or until it doubles in size.
Step 3: Shape the Buns
- After the dough has risen, punch it down and divide it into equal portions (about 10-12 pieces work well). Roll each piece into a ball, then flatten it into a circle using your hands or a rolling pin.
Step 4: Fill the Buns
- Grab the chilled custard filling from the fridge. Take a small amount (about a teaspoon) and place it in the center of each dough circle. Carefully fold the edges over the filling and pinch to seal tightly, ensuring none of the custard spills out.
Step 5: Steam the Buns
- Place the buns on parchment paper squares in a steamer basket. Ensure they are spaced out to allow for expansion. Cover and steam over boiling water for about 10-15 minutes. You’ll know they’re ready when they’re puffy and the dough looks glossy.
Step 6: Enjoy!
- Once done, carefully remove the buns from the steamer and let them cool slightly. Your nai wong bao custard buns are now ready to be devoured!
Notes
- Use Fresh Ingredients: Always check the expiration dates on your yeast and custard powder. Fresh ingredients yield better results!
- Don’t Overwork the Dough: Knead until just smooth. Overworking can harden the texture.
- Warm Environment for Rising: Ensure a cozy, draft-free spot for the dough to rise. A slightly warm oven works great.
- Seal the Buns Well: Ensure your buns are tightly sealed to prevent leakage during steaming.
- Steam with Care: Avoid lifting the lid during steaming to maintain temperature and moisture.
Nutrition
Frequently Asked Questions
1. Can I make nai wong bao custard buns in advance?
Yes! You can prepare them up to the steaming step, then refrigerate or freeze them. When you’re ready, just steam as needed.
2. Are these buns suitable for vegetarians?
While traditional recipes use salted egg yolks, you can substitute with a vegetarian custard mix for a vegetarian-friendly version.
3. Can I use different fillings apart from custard?
Absolutely! Feel free to experiment with sweet red bean paste, lotus seed paste, or even savory fillings like BBQ pork.
4. Why is my dough too sticky?
The dough might be too warm or too much water was added. Try using a little more flour as you knead until it reaches a workable consistency.
5. What can I serve with nai wong bao?
These buns serve wonderfully alongside tea, soups, or even a light salad for a refreshing contrast.
Conclusion
Making nai wong bao custard buns can be a joyful culinary journey that brings together friends and family around the table. With a bit of patience and the right technique, you can create these soft, fluffy buns that are not just desserts but also an experience to savor. Whether enjoyed warm with tea or as part of a larger meal, they hold a special place in both heart and palate.
So gather your ingredients, roll up your sleeves, and dive into the delicious art of making nai wong bao. This experience will be one you won’t forget, and neither will those lucky enough to share your creation. Happy cooking!