Hot ‘n’ sour soup

Ingredients
Chicken breast 1 thinly sliced
Prawns 8 to 10 (marinate chicken and prawns with salt and white pepper ½ tsp and ¼ cup water).
Chicken stock 8 cups
Sugar 1 tbsp
Salt 1 tsp heaped
White pepper ½ tsp
Vinegar ¼ cup
Cabbage 1 cup thinly sliced
Carrot 1 fine Julian
Beans sprouts ½ cup
Bean curd 2 pieces cut into tiny cubes
Coriander leaves chopped 2 tbsp heaped
Corn flour ¾ cup mixed with ½ cup water
Egg 1 beaten
Method
Cook stock add chicken and prawns, cook for 10 minutes, add in all the vegetables with seasonings, when soup boiling thicken with corn flour paste, lastly add beaten egg, coriander leaves and remove.