Japanese Yam Dessert Soup

Ingredients
1 Japanese yam - peeled and cut into cubes]
2 pandan leaves - knotted
handful goji berry
rock sugar to taste
2 cups water 

 Method

1. Bring water, pandan leaves and ginger to a boil.
2. Continue to boil for a few minutes.
3. Add cubed yam and goji berry and boil till tender.
4. Add rock sugar to taste. 
5. Ladle into serving bowls.
6. Serve warm or chilled.