Wash hands thoroughly after handling raw seafood and eggs. Use separate cutting boards and knives for raw ingredients to avoid cross-contamination.
Cut choy sum into sections, slice mushrooms, slice fish cake, and mince garlic. Butterfly and devein prawns, rinse with water, drain, and pat completely dry with paper towels. In a small bowl, marinate prawns with 1g salt, 0.5g white pepper, 2.5ml Shao Xing wine, and 2g cornstarch. Lightly beat 1 egg in a bowl without overmixing.
Watch out
Ensure prawns are patted dry before marinading, otherwise the starch coating won't stick and prawns will turn tough.






