Rim a mason jar with brown sugar: Simply dip the rim in fresh lime juice and then in brown sugar.
Smash the fruit and herbs: Place blackberries and mint in the bottom of the cup and muddle until smashed. Squeeze-in one lemon wedge to add a hint of citrus.
Add liquids: Fill cup with desired amount of ice. Pour in your whiskey of choice and simple syrup. Then fill to the brim with club soda.
Decorate: Garnish with fresh blackberries, lemon wedge, fresh mint and a festive straw. Stir and enjoy.
Recipe by Slice of Jess at https://sliceofjess.com/easy-cocktails-blackberry-whiskey-smash/