I know this is a bit of an odd question, particularly as I’m sure you clean-living people wouldn’t have personal experience of such things but…
As a result of an unusual set of circumstances, we have ended up with quite a few bottles of spirits that we don’t normally drink (OH has the occasional G&T but that’s about it). I have a book of cocktail recipes and have quite enjoyed them in the past and thought it might be fun to experiment but many of the recipes using the spirits we have need the addition of bizarre flavourings. We have inherited a bottle of Angostura bitters so can play with those recipes but am really puzzled as to where to get some of the other additional bits e.g. Orange bitters or the UK version of Grenadine (which is alcoholic).
The local supermarkets stock lots of spirits but not those bits so I was wondering if anyone had spotted such things anywhere? I don’t like Amazon but even if I did use them the delivery charges are massive - presumably imported from the UK or somewhere like that.