In a small bowl, combine the cornflour with 2 tablespoons of water and fold through the mixture.
Add a teaspoon of mixture to the middle of eat wrapper and dab the outer pastry with water. Lift all of the pastry edges and fold into a money bag shape. Pinch the top tightly and continue until all of the pastry and mixture has been used.
Place the dumpling into the base of the pre assembled steamer and set to steam for 3 minutes. Continue until all dumplings are cooked.
To make dipping sauce, combine all dipping sauce ingredients and mix well. Serve over dumplings.