just watch out for the rat hairs
For the curdled-milk-based, custardlike food with a tart flavor, yoghurt is the preferred spelling in the main varieties of English from outside North America. Yogurt is preferred in American and Canadian English. They are variant spellings of the same word, and neither has any meanings all its own. A third spelling, yoghourt, ...
I stand corrected, MM.
The same page had the spelling yogurt, familiar to me, so I'd thought the other was a mistake.
We'll teach you Yanks how to spell, yet!