Chop the spring onions and ginger into small pieces. Fry in hot oil. Press the garlic and add to the pot. Add coconut milk, tomatoes and curry paste and bring to the boil. Puree the soup. Squeeze the lime and add it with the sugar and spices. To taste.
The information is for two people as a main course. If the soup is served in a menu, the amount is enough for four.