Get your mint, limes, simple syrup, and club soda out and ready before you start making the drink. Having everything prepared means you'll work faster and the ice won't melt into your glass.

Place 8 to 10 mint leaves directly into the bottom of your tall glass, keeping them whole for now. You want to preserve those leaves so they stay pretty in the final drink and release their oils gradually.

Pour 2 tablespoons of simple syrup over the mint leaves. The syrup will coat the leaves and prepare them for muddling.

Using a muddler or the back of a wooden spoon, press the mint leaves down gently for about 10 seconds, twisting slightly as you go. You're trying to release the mint's essential oils without shredding the leaves into tiny pieces, which makes the drink look cloudy and bitter.

Take one lime wedge and squeeze it directly into the glass over the muddled mint, making sure you capture all the juice. The lime juice will combine with the mint oils and create the signature flavor base.

Add ice cubes to the glass until it's nearly full, which will chill the drink quickly and prevent dilution from melting ice. Use plenty of ice so the drink stays cold from the first sip to the last.

Pour 4 ounces of cold club soda into the glass, pouring it slowly so it doesn't splash out. The soda will fizz as it mixes with the mint and lime, creating that refreshing carbonation.

Give the drink a good stir with a bar spoon for about 10 seconds to combine all the flavors evenly. Take a sip and adjust with a splash more lime or syrup if needed.

Place a fresh mint sprig on top of the drink and add the second lime wedge to the rim as a garnish and flavor boost. Serve immediately with a straw so your guest can enjoy it while it's still perfectly cold.