Is the Instagrammable cocktail over? After a period of flamboyance and humour, minimalist drinks are now in vogue writes Paul Mathew. 
				
				
			The Savoy, London, serves this smoke-backed whisky cooler with a caper to cleanse the palate.
				
				
			In this drink at BlackTail, New York, it’s the carefully engineered liquid – not a garnish – that does the talking.
				
				
			An apple-boosted, minimalist refresher from the London bar.
				
				
			A flavour-layered, but served-naked, rum sour from The Dead Rabbit in New York.
				
				
			




