Blackberry Bourbon Smash

I enjoyed several of these “Blackberry Bourbon Smash” from Maltings Whiskey Bar on Norwegian Breakaway on my recent vacation.

2 oz bourbon
1/2 oz lime juice
6-7 mint leaves, muddled
2-3 blackberries, muddled
3/4 oz simple syrup
1 oz club soda

Garnish with 2 or 3 blackberries