Mooncake Biscuits (公仔饼)

Mooncake Biscuits (公仔饼)

Mooncake biscuits or also known as ‘doll biscuits’ belong to childhood memories of many Chinese descendants in Singapore or Malaysia. This recipe is simple and has all the tips you need for the perfect golden, shiny and soft mooncake biscuits.

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Preparation 95 mins
Cooking 70 mins

Dessert, Snack

Doll Biscuits, Piggy Biscuits, 公仔饼


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Nutrition per Serving

238 kcal
51 g
4 g
1 g

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Mooncake biscuits are little sweet snacks which are like the outer layer of the mooncake. Unlike the traditional baked mooncakes, these biscuits are usually made without filling and are much thicker. They are also nicknamed doll biscuits, a direct translation of its Chinese name, 'gong zai beng'.

History of mooncake biscuits

The origins of doll biscuits are actually from the traditional baked mooncakes. Before making the labourous mooncakes, bakers will usually prepare the dough for the skin and bake unfilled mooncakes. It is to test the texture of the dough and the heat of the brick oven. These unfilled mooncakes were then made into the shape of piglets earning them the nickname piggy biscuits. They were often given as gifts to customers who bought the traditional mooncakes. Over the years, they are made into shapes of Buddha, butterfly or goldfish besides others.

Golden syrup, you need to know this!

This is one of the main ingredients when making mooncakes. Golden syrup is inverted sugar made by refining sugar by treating it with acid.

To make your own homemade syrup, just combine sugar, water and lemon! It is really that simple and it can be made few days in advance. Store it in an air-tight container at room temperature.

Homemade golden syrup
Homemade golden syrup

Just be careful with the mixture during cooking as it tends to rise. Therefore, using a pot that is deep is highly recommended.

Bubbling syrup mixture
Bubbling syrup mixture

Do not worry about this syrup tasting too citrusy because it is not be even noticeable. For more flavour, you can even add some fresh pineapples and Chinese pickled sour plum (used in this steamed fish recipe). These ingredients help to enhance the taste of the golden syrup without intruding on the original flavour.

It is possible to buy golden syrup in your local supermarkets. If you are wondering, my baking instructor use to call this fake honey. So yes, you can simply use honey as a substitute.

Is lye water dangerous?

Sometimes called lime water or alkaline water, it is commonly used in making baked goods such as bagels, pretzels and noodles. It is used to increase the pH level of the dough besides giving it a nice shade of yellow. With noodles, lye water makes them springier for a better mouth feel.

According to this article from the government of South Australia, lye water is safe to use in small amount (spoonfuls) for cooking. Therefore, you can safely use it in this recipe.

Can lye water be substituted?

It depends. You may replace it with some baking soda. However, this will result in a slightly dry, crumbly and uneven coloured dough. If you are comfortable with the difference, then it is replaceable. Making your own lye water (by boiling baking soda) will also give the same result. I had tried and tested 6 times. Nothing beats the store bought lye water. The colour of the biscuits is much more even too.

Baking soda (top) vs store bought lye water (bottom)
Baking soda (top) vs store bought lye water (bottom)

Since golden syrup is acidic, some kind of alkaline is needed to neutralize it. Therefore, without lye water, the mooncake will be pale in colour and the texture will be hard. This theory is similar to the reaction of baking soda (alkaline) and vinegar (acid) which aids aeration in cakes helping to raise the dough. So, it is not possible to simply skip this ingredient.

Can all-purpose flour be used?

All-purpose flour will make the dough extremely hard due to the higher amount of gluten. It is best to use cake flour. Otherwise, you may try to substitute cake flour by combining 100g of all-purpose flour and 20g of cornstarch.

What if I don‘t have peanut oil?

Substitute it with any other colourless and flavourless oil such as corn oil or sunflower oil. Peanut oil is great for this recipe as it is much more fragrant compared to the other types of oil mentioned.

Getting the perfect shape from the mould

The special mould can be bought in speciality baking stores, selected Asian grocers or online. Common problem is the dough sticking to the mould causing the biscuits to look imperfect. Prevent this by dusting some flour into the mould.

Dusting flour onto mould
Dusting flour onto mould

Some moulds may have intricate designs especially on the sides. Ensure that the dough is fully pressed into the mould to get the full pattern.

Dough pressed into mould
Dough pressed into mould

Do not eat the mooncake biscuits immediately

After baking, these biscuits are rather hard and light in colour. Have some patience and let them sit for 2 to 3 days in an airtight container to allow the biscuits to soften. Most importantly, the signature shiny appearance of the mooncake biscuits appears when the oil from the paste seeps out to the skin.

Why do the biscuits crack during baking?

Doll biscuits may crack if you over baked the dough or if there is too little moisture in the dough. If you are making a large batch, it is advisable not to leave the unbaked biscuits openly. Cover the dough with a damp cloth to keep it moist before baking.


300 g
315 g
70 g
golden syrup
30 g
peanut oil
8 g
lye water
1⁄4 tsp
120 g
cake flour
egg yolk(s)

Steps to Prepare

Mooncake Biscuits (公仔饼) Step 1

Step 1 of 5

    • 300 g sugar
    • 300 g water
    • 1 lemon(s)

Prepare golden syrup by combining sugar, water, lemon juice and its skin in a deep pot. Do not stir the content of the pot and cook over medium-high heat for 10 minutes. Then, reduce heat to low-medium heat for 25 minutes or until it turns to golden amber colour. Stir the pot every few minutes to avoid burning. Set aside to cool to room temperature.

Mooncake Biscuits (公仔饼) Step 2

Step 2 of 5

    • 70 g golden syrup
    • 30 g peanut oil
    • 8 g lye water
    • 1⁄8 tsp salt
    • 120 g cake flour

Combine golden syrup, oil, lye water, and salt. Add flour and mix until combined. The dough doesn‘t need to be kneaded. Allow dough to rest for an hour.

Mooncake Biscuits (公仔饼) Step 3

Step 3 of 5

Divide the dough into individual portions of 35g each. If you want to include filling, you may use 25g dough to wrap 10g filling of your choice. Set aside.

Mooncake Biscuits (公仔饼) Step 4

Step 4 of 5

To shape biscuits, dust the mould with some flour to prevent sticking. Press one portion of the dough into the mould. Ensure that it fills up the pattern, then knock it out onto a piece of cloth. The shaped dough should come off easily. Repeat until all dough portions are shaped.

Mooncake Biscuits (公仔饼) Step 5

Step 5 of 5

    • 1 egg yolk(s)
    • 15 g water
    • 1⁄8 tsp salt

Bake them for 8 minutes at 170 degrees Celsius. Remove from the oven and let them rest for at least 15 minutes. Meanwhile, prepare egg wash by beating egg yolk, salt and water. Brush biscuits with egg wash and bake at 170 degrees Celsius for about 8 to 10 minutes until they turned golden brown. Allow to cool before storing in an airtight container for 2 to 3 days before consuming.

Published: September 20, 2020

3 Discussions

3 years ago


Hi there ! I tried the recipe and it wasn’t as hard as expected right after baking! Didn’t have to leave in container for 2-3 days. Then I tried multiplying the recipe to make a bigger batch but the dough was extra wet and sticky. Don’t know what went wrong 😅😅😅

3 years ago


Hello Desiree! Sorry to hear that the bigger batch of dough was extra wet and sticky. Maybe you could try adding in some flour into the dough (gradually by 10g) till it reaches a workable consistency. Hope it helps :)

Guat-Lian C Kreamer
3 years ago

Guat-Lian C Kreamer

You are absolutely right! There is a universe of options out there,,, Thanks for the tip! Guat-Lian

Guat-Lian C Kreamer
3 years ago

Guat-Lian C Kreamer

I am a big fan of fish-shaped things, hence have to ask if you can recommend any specific sources for this particular mould? Much appreciated!

3 years ago


Try online platforms like Amazon! ;)

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