Gosling's Black Seal 80 proof Bermuda Black Rum is black and sticky, the base of
Bermuda's own Dark and Stormy cocktail, and comes top in today's Blog "Drink
which looks most like Oil" competition.
Also high
on the list must be the Black Russian, not only oil-like in colour but also
geographically correct.
Liquorice liqueur and home-made liquorice vodka seem to be popular on the student circuit and have the right viscous consistency.
And then there's straight Guinness - not so much a cocktail, but certainly black.
For more oil and chemical-themed entries, I am endebted to aromatics editor and former bar manager, Peter Salisbury who proposes:
The Oil Slick - based on black sambucca.
The Midnight Oil - oily only in name, because it looks suspiciously light-coloured from the ingredients.
And the extremely topical biofuel-themed Corn 'n' Oil, based on dark rum made from Blackstrap molasses and falernum, an obscure spice-flavoured tipple from the Caribbean.
All i can think of is Sick 'n' bag, when I read about that Oil Slick drink.