In a tall glass add the rum, simple syrup and several slices of lime. Top with a generous handful of ice s by several mint leaves and at least 4-6 raspberries. Top with a couple more slices of lime. Fill glass with club soda, swirl to combine and enjoy!
I did not muddle the raspberries, mint and lime with the rum before adding the soda water. You may add this step if you prefer, or skip it. I prefer to add in more flavor as I go.