1 1/2 oz Port Cask Finished Virginia-Highland Whisky
1/4 oz Mezcal
½ oz Lime Juice
1 oz Simple Syrup
2 Red Raspberries
In a mixing glass, muddle blackberries, raspberries, and simple syrup well. Strain over rocks glass and add whisky and Mezcal; stir thoroughly. Fill glass with ice and top with seltzer. Garnish with blueberries.