Step 1: Preparing the Pastry Dough
In a large bowl, whisk together the golden syrup, lye water, and oil until fully emulsified. Sift in the flour and use a spatula to fold it into a soft dough. Do not over-knead, as this develops gluten and makes the crust tough. Cover with plastic wrap and let it rest for at least 2 hours at room temperature. This resting period allows the flour to fully hydrate.Step 2: Curing the Egg Yolks
Preheat your oven to 350°F (175°C). Mist the salted egg yolks with wine to enhance the aroma. Bake them for 5 minutes just until they start to bead with oil. Set them aside to cool completely. This prevents the yolks from being dry and crumbly inside the finished cake.Step 3: Dividing and Portioning
For a standard 50g mold, use a ratio of 15g dough to 35g filling (including the yolk). Weigh your yolks, then add enough lotus seed paste to reach exactly 35g. Roll these into smooth balls. Divide your rested dough into 15g portions and roll them into balls.Step 4: Wrapping the Filling
Flatten a dough ball into a thin, even circle. Place the filling ball in the center. Gently push the dough upwards using your thumb and index finger, slowly enveloping the filling. The dough is elastic; be patient and ensure there are no air bubbles trapped inside. Seal the top and roll it into a smooth sphere.Step 5: Molding and Shaping
Lightly dust your mooncake mold with flour and shake off the excess. Place the dough ball inside. Set the mold on a parchment-lined baking sheet and press down firmly for 3 seconds. Gently release the plunger to reveal your beautifully patterned moon cake].Step 6: The Two-Stage Baking Process
Bake at 375°F (190°C) for 5 minutes to "set" the pattern. Remove from the oven and let it cool for 10 minutes. This is the secret step! While cooling, prepare an egg wash (1 yolk + 1 tbsp water). Lightly brush only the raised patterns. Return to the oven at 325°F (165°C) for another 10–15 minutes until golden brown
