Swap vodka for Irish whiskey and the Moscow Mule grows up.
Why you are pouring this tonight
The Moscow Mule grew up in Los Angeles in 1941. The Irish Mule grew up in a bar in Sligo at half-past one in the morning when the vodka had run out and a man named Declan said try this. Irish whiskey, lime, ginger beer, copper mug, slap-mint sprig. The honey-and-grain note in Jameson against the snap of the ginger beer is one of those combinations that makes you wonder why nobody talks about this drink.
Use Jameson at the entry tier. Bushmills Black Bush if you want to spend the extra fifteen dollars and have a darker, more biscuity drink. Skip the supermarket ginger ale (it is sugar water with a memory of ginger) and use Bundaberg or Fever-Tree, real ginger that bites back. Build over crushed ice in a copper mug if you have one (the cold transfer is the whole point of the copper) or a tall highball if you do not. Slap the mint, lay it on top, eat with anything that came off a charcoal grill.
What to pour it alongside
Beef and Guinness pie, oysters, soda bread.
Notes
Use a real ginger beer (Bundaberg, Fever-Tree). Smoother whiskeys like Jameson go fruity here; Bushmills Black Bush adds a bit more weight if you want a darker drink.

