Sweet blackberry, bourbon and amaro marry in this old fashioned riff. It's an easy cocktail to assemble, and even better if you batch it. To make a set of 8 to 10 cocktails, use the following recipe. Make sure to give the cocktail time to chill in the fridge or freezer before serving.
Combine whiskies, amaro, simple syrup and water in a large container and stir until well-combined. Chill in the fridge overnight or for several hours before serving. Place in the freezer for 30 minutes just before serving to get the cocktail well-chilled. Keep in an ice bucket if you’re having guests serve themselves to make sure it stays chilled throughout the party. This can be served either neat in a coupe or martini glass, or in a rocks glass over ice. Fresh basil or fresh mint as a garnish will make the drink exceptional. If serving in a coupe or martini glass, use a single spanked mint or basil leaf. If serving in a rocks glass over ice, a small sprig of mint or basil dresses up the cocktail nicely.