Such a delicious recipe, and with the simplest ingredients!
One of my Filipina flat mates used to always make this lock, stock, and barrel to eat before and after flights. But too bad, if I had found it first, even the biggest barrel would be wiped CLEAN of any evidence of a soup in it!
If you don't like the taste of celery, or find it too strong, do not worry. The soup has the slightest and the mildest taste of celery.
Tastes best with soup sticks or toast or baguette.