Chestnut Purée Mooncake
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Ingredients
Component | Ingredients |
The Crust | 150g All-purpose flour, 100g Golden syrup, 35ml Vegetable oil, ½ tsp Lye water (Kansui) |
Chestnut Filling | 500g Peeled chestnuts (boiled/steamed), 100g Sugar, 50g Maltose (or honey), 40ml Vegetable oil |
Optional | 6-10 Salted egg yolks (steamed for 5 mins), 1 Egg (for egg wash) |
Instructions
1. Make the Chestnut Purée
- Blend: Blend cooked chestnuts with a splash of water until completely smooth.
- Cook: Pour into a non-stick pan over medium-low heat. Add sugar and maltose.
- Incorporate Oil: Gradually stir in the oil in three batches, allowing the purée to absorb it fully each time.
- Reduce: Stir constantly until the paste thickens into a pliable dough that pulls away from the pan. Let it cool completely.
2. Prepare the Dough
- Mix: Whisk golden syrup, oil, and lye water together.
- Combine: Sift in the flour and fold gently until a soft dough forms. Wrap in cling film and let it rest for at least 1 hour at room temperature.
3. Assemble and Shape
- Divide: For a 50g mooncake mould, use 15g of dough and 35g of filling (include the egg yolk in the filling weight).
- Wrap: Flatten the dough into a thin disc. Place the filling ball in the centre and gently push the dough upward to seal it completely.
- Mould: Dust the mooncake lightly with flour. Press into the mould and release onto a lined baking sheet.
4. The Bake
- Initial Bake: Bake at 180°C for 5 minutes to set the pattern.
- Egg Wash: Remove from the oven and let cool for 5 minutes. Brush very lightly with a beaten egg (mixed with a splash of water).
- Final Bake: Return to the oven for another 10–12 minutes until golden brown.
Pro Tips for Success
- The "Return of Oil" (Hui You): Do not eat the mooncakes immediately! Place them in an airtight container for 2-3 days. The crust will absorb oil from the filling, becoming soft, shiny, and deeply flavourful.
- Thin is Key: Aim for a thin, even crust. If the dough is too sticky, let it rest longer rather than adding more flour.
- Low Moisture: Ensure your chestnut paste is cooked until quite dry. If it's too moist, the mooncakes will "waist" (collapse or bulge) during baking.
To celebrate the Mid-Autumn Festival, I've created this detailed visual guide to mastering the delicate Chestnut Purée Mooncake.
This unique variation swaps the heavy sweetness of traditional lotus seed paste for a velvety, earthy, slow-cooked chestnut purée, offering a sophisticated flavour profile that melts on the tongue. My guide focuses on the critical, hands-on step: the intricate moulding process that defines these beautiful pastries.
Follow the step-by-step visuals and my pro tips to achieve a perfect, defined pattern every time:
Moulding Visual Guide: Step-by-Step
This process requires precision and careful handling. Refer to the panel images for visual clarity.
Visual Step | Method: "Wrap and Seal" | Method: "Shape in the Mould" | Method: "Release the Pattern" |
Action (Left Panel) | Action (Center Panel) | Action (Right Panel) | |
Flatten a dough disc, place the chestnut/egg yolk filling ball in the centre, and wrap carefully to seal without air. | Dust the antique wooden mould with flour. Lower the sealed dough ball into the mould to fit perfectly. | Invert the mould and gently tap with a small mallet to release the intricate mooncake pattern. |
The Recipe (For the Moulded Steps shown)
Here are the specific ratios used for the 50g mooncake (as visualised):
- Dough (Crust): 15g (using the rested dough recipe from the introduction).
- Filling: 35g (a sphere of dense chestnut purée containing a 10g salted egg yolk core).
- Total Mooncake Weight: 50g.
Pro Tips for the Moulding Process
- 1. Zero Air Pockets: When performing the "Wrap and Seal" step (Left Panel), ensure there is absolutely no air between the crust and the filling ball. Air pockets will cause the mooncake to puff and burst during the initial bake, completely destroying the delicate pattern.
- 2. The Flour Trap: Be disciplined with dusting your traditional mould (Center Panel). Too much flour fills the intricate details and leads to a blurry pattern. If this happens, clean the mould with a dry toothpick before proceeding.
- 3. The Release (Right Panel): When you "Release the Pattern," use gentle, consistent taps. Avoid a single hard slam, which can cause the mooncake to detach unevenly and crack the crust.
- 4. Crucial Resting: Refer back to the full instructions: Rest the mooncakes for 5 minutes after the initial 5-minute set bake before applying the very thin egg wash. If the pavlova is still too warm, the egg wash will cook on contact, resulting in a cloudy, non-glossy finish.
