Kreyla was a type of baked Vulcan bread-like foodstuff.

Daniel Corrigan enjoyed kreyla, but considered inferior to Earth breads. Sarek was of the opinion that Sam's Bakery in ShiKahr produced superior kreyla compared to his own home's food synthesizer. (TOS novel: The Vulcan Academy Murders)

In 2381, Spock ordered kreyla with plomeek soup in a Ferengi restaurant on the Romulan world Terix II. (ST - Typhon Pact novel: Rough Beasts of Empire)