From a UK TV show I saw tonight (Cook Yourself Thin) these sound divine and are apparently 53kcals each and really quite low fat (all things considered). They were made with champagne on the TV show and are listed with coffee on the website, but it says you can pretty much vary the liquid up to that of your choosing, i.e. liqueur, coffee, tea or herbs. For personal preferences I'm going to list it with Tia Maria as that's what I'd try first. Please note that chilling time (30mins) is not included in the timings. I made these the other night and they are really good. Although it seems a lot of booze, etc. the flavour is quite subtle. Once made you need to refrigerate before consumption as the flavour develops better this way.