1. Wash the duck eggs with warm water, then put them into a pot with enough water to boil, and then switch to low heat to cook for 10 minutes.

2. Fish out the duck eggs and soak them in cold water to help remove the shells.

3. Poke a few small holes in the surface of the hard-boiled duck eggs with a toothpick to allow the wine to penetrate more easily.

4. Prepare a ceramic bowl, add the wine and rock sugar, and mix well.

5. Place the duck eggs in the bowl, making sure each one is well soaked in the wine, then cover with plastic wrap and leave to ferment at room temperature, which usually takes 2-3 days.

6. After fermentation, the wine wine egg is ready, you can put it into the refrigerator for better taste.