Espresso tonic, I did try it a couple of years ago and it reinforced my belief that there are thousands of nice cold drinks and coffee doesn’t need to be one,
Cold coffee is an awesome drink and I will happily drink any preparation of decent coffee, black or white, on ice with no sugar, so I've no aversion to bitterness, but I've no idea why espresso tonic is a thing.
I also tried one for the first time today and was surprised, I think pleasantly. Seems reasonable to me for it to be more than the cost of a flat white due to the can of tonic.
Cold coffee is an awesome drink and I will happily drink any preparation of decent coffee, black or white, on ice with no sugar, so I've no aversion to bitterness, but I've no idea why espresso tonic is a thing.