Curdle – When a liquid curdles, it gets thicker and develops lumps (also known as curds)
Curse this idle (curdle) chef: she just left the pans and all the sauces have gone lumpy.
Examples of curdle in a sentence
It's vital not to overheat the liquid because it will curdle as well as lose its taste.
I accidentally left the milk out all day and it's begun to curdle.
During the cheese making process, cheesemakers cause the liquid to curdle into thick lumps.