In a cocktail shaker, add the sliced kiwis and a few fresh mint leaves.

Use a muddler to gently mash the kiwis and mint together until the kiwis are well crushed and the mint is fragrant.

Pour in the bourbon, simple syrup, and fresh lemon juice.

Fill the shaker with ice and shake well until the mixture is chilled.

Strain the mixture into a glass filled with ice.

Add a splash of club soda to the glass and gently stir to combine.

Garnish with a slice of kiwi and a sprig of mint.

Enjoy your refreshing Kiwi Bourbon Smash.