Given the background description of some cooking related query, summarize the question into a title
Q: Yesterday, I had some cooked rice and poured in coconut milk. The can turned out to be bigger than expected so the contents got a bit too "loose".One way was to cook some more rice, of course. However, I wonder, is there another commonly usable ingredient to thicken up things?I'm thinking - if it's too thick, I'd pour in some water or milk. Possibly oil too. But what if I want to accomplish the opposite?
A:
Common ingredient to thicken the soup