Ajwain has a particular affinity to starchy food like savoury pastries and breads, especially parathas, snacks like Bombay mix and potato balls get an extra kick from Ajwain seeds. It is also good with green beans and root vegetables, lentil dishes and recipes using Besan (Chick pea flour).
Ajwain seeds contain an essential oil which is about 50% thymol which is a strong germicide, anti-spasmodic and fungicide.
Thymol is also used in tooth paste and perfumery. It is well known seed for instant remedy for Stomachache.