Savoury Japanese custards are enriched with stock and in this recipe contains prrawns, shitake mushrooms, pak choi, water chestnuts and chicken. In fact nearly anything that compliments the flavour of the dish can be included eg. ginko nuts, seaweed, salmon and bamboo shoots.Japanese custards can be served hot or cold and eat them with chop sticks or/and a spoon. You will need small heat proof dishes to cook and serve the custards in.