Ian J.

Steak flavoured marshmallows.

East Coast at one time - National Express days was when it started - developed what might best be described as the very irritating habit of not using separate pots for tea or coffee and then not very thoroughly de-flavouring' them between uses.  So coffee flavoured tea was all too common place on the ECML - and it tasted bloomin' awful.

Starmucks also seems to serve coffee flavoured tea at times.  But fortunately my experience of their establishments is extremely limited in large measure due to the stuff they call tea which very definitely hails from neither Yorkshire or Cornwall..

Both sound disgusting!