The classic negroni, made with equal parts gin, sweet vermouth, and Campari, can be enhanced with coffee ice cubes, whose bitterness pairs well with Campari.

To really preserve a negroni's special flavors, mix the cocktail so that there's just a slight hint of coffee. Too much coffee at once may cause these flavors to become lost.

Adding frozen coffee ice cubes is like stopping the infusion process. As the cubes melt, the coffee will suffuse the drink gradually with its deep, rich essence as you drink.

You'll get just a hint of coffee on the first sip, and by the last, the coffee flavor will come down on your taste buds full force, finishing the drink with a bang.