In a sturdy glass, add about a handful of fresh mint leaves along with a tablespoon of white sugar. Using a muddler or the back of a spoon, gently press down on the mint leaves to release their aromatic oils without tearing them apart, which takes about 15-30 seconds. Stop when fragrant and slightly bruised.

Pour in approximately 1 ounce of freshly squeezed lime juice over the muddled mint mixture, ensuring the acidity starts to dissolve the sugar. Stir gently with a spoon for about 10-15 seconds, allowing the flavors to meld beautifully.

Next, add in 2 ounces of white rum. Gently stir the mixture for another 10 seconds to combine all the ingredients and enhance their delicious flavors.

Fill the glass with ice cubes all the way to the top, about 3/4 full, creating a refreshing, cool base for your drink.

Top off the glass with about 3-4 ounces of sparkling soda water, gently stir with a long spoon to combine, but be careful not to agitate it too much.

Garnish with a sprig of fresh mint and a lime wheel. Serve immediately and enjoy the vibrant, summer-infused flavors!