Let mixture stand for a few minutes at room temperature to curdle and thicken.
From the delawareonline.com
Mixture will loosen and curdle slightly, but will become smooth again as it cooks.
From the dallasnews.com
It's easy to make and you can reheat it without having it separate or curdle.
From the charlotteobserver.com
You can't dump the yolks into the hot filling all at once or they'll curdle.
From the sacbee.com
It is essential not to let the mixture get too hot otherwise it will curdle.
From the guardian.co.uk
Calf rennet is added, and the mixture is left to curdle for 10-12 minutes.
From the en.wikipedia.org
If you continue blending, the cream will curdle and your guests will cry.
From the kansas.com
Heat the soup through but don't bring to a boil or the yogurt may curdle.
From the kansas.com
Why then do we so often let the sweetness of religion curdle into combat?
From the time.com
More examples
Turn into curds; "curdled milk"
Go bad or sour; "The milk curdled"
Turn from a liquid to a solid mass; "his blood curdled"
(curdling) the process of forming semisolid lumps in a liquid
Curds are a dairy product obtained by curdling (coagulating) milk with rennet or an edible acidic substance such as lemon juice or vinegar, and then draining off the liquid portion (called whey). ...
(Curdled (film)) Curdled is 1996 black comedy about a Colombian immigrant who takes a crime scene cleanup job, and discovers evidence about a local serial killer dubbed the "Blue Blood Killer" for his targeting of socialites. ...
To form curds so that it no longer flows smoothly; to cause to form such curds. (usually said of milk); To clot or coagulate; to cause to congeal, such as through cold. (metaphorically of blood); To cause a liquid to spoil and form clumps so that it no longer flows smoothly
(Curdling) An early stage in cheesemaking when milk coagulates due to the introduction of rennet.
(Curdling) The gelling or partial cure of paint due to incompatible materials. This usually occurs during the mixing process.