Mix all xiao long bao ingredients in a metal tray and wrap in cling film. Then steam for 1 hour.
Strain, keeping only the liquid. Add 7g of xantana and 30g of gluco for each litre of xiao long bao liquid.
Mix 5g of Algin into 1 litre of distilled water.
Carefully submerge one spoonful (approx 1 tbsp) of xiao long bao liquid into Algin mixture. Remove xiao long bao spheres after 2 minutes. Rinse in distilled water.
Heat slowly in oil (approx 45°C) until service. Remove and rinse in hot water, serve.
Vinegar Sheet
Boil vinegar and agar to dissolve, pour onto a flat tray on top of a piece of teflex or cling film until the solution is about 2mm thick.
Put the tray inside the air-dryer for 2 hours to form a thin dried sheet of vinegar, cut into small pieces.
To Serve
Remove the xiao long bao spheres and rinse in hot water. Serve with small pieces of the vinegar sheet.