Defrost the prawns. Bring the vegetables and 200 ml water to the boil in a saucepan and cook covered for about 5 minutes. Remove the pot from the stove. Add 500 ml boiling water and package contents (noodle snack) and let it simmer for about 2 minutes. Peel and wash the shrimps and pat them dry.
Heat the oil in a pan and fry the prawns for 4-5 minutes. Season with salt and pepper and add to the soup. Bring the soup to the boil again and season with salt, pepper, chilli flakes and possibly some instant broth. Wash the coriander and chop finely. Serve the soup and sprinkle with coriander