Rapaire, G & T is the standard abbreviation for that drink, pronounced Gee and Tee.
I like Whisky or Whiskey in tea, and I'll drink Brandy in Coffee. On cold days, of course. I'll try Gin and tea next time someone gives me a bottle of Gin.
The darjeeling that I eulogised above could be described as puckery, if I've understood the term, or as I call it, abrasive.