Wiktionary
n. 1 (context Scotland now historical English) gruel or thin porridge. 2 A Scottish form of cottage cheese.
Wikipedia
Crowdie is a Scottish cream cheese, or the term less often refers to a type of brose (an uncooked porridge).
The cheese is often eaten with oatcakes, and recommended before a ceilidh as it is said to alleviate the effects of whisky-drinking. The texture is soft and crumbly, the taste slightly sour. Like cottage cheese it is very low in fat, being made from skimmed milk.
A version of crowdie known as "Black Crowdie" or "Gruth Dubh" is made by rolling crowdie in a mixture of pinhead oatmeal and crushed black peppercorns.
Usage examples of "crowdie".
They led him through Cockle Tom’s Garve, back and forth across the Manswater, then down into Crowdie Wort’s Bally, where he’d first met and then lost Jacky earlier that night.
And she didn’t dare let him take her back to this Crowdie Wort—whoever he was—because the Host had Jacky now and if she didn’t do something about rescuing Jacky, no one would.
He gave her a long considering look, then turned his attention to Crowdie Wort’s forester.