This is the 17119th most frequent Turkish word.
çorbanın
"Çorbanın" means "of the soup" or "the soup's" in English.
Here, 'çorbanın' is the possessive form ('of the soup') describing who the taste belongs to.
Çorbanın tadı çok lezzetliydi.
The taste of the soup was very delicious.
In this sentence, 'çorbanın' indicates the recipient of a location change, showing where something is added ('into the soup').
Çorbanın içine biraz baharat ekledim.
I added some spices to the soup.
This usage of 'çorbanın' again denotes possession ('the warmth of the soup'), relating to the soup's characteristic being discussed.