Gather all your ingredients and equipment.

Pour some granulated sugar onto a plate. Moisten the rims of your cocktail glasses with a lemon wedge, then dip them into the sugar.

Juice the lemons using a juicer or reamer.

In a shaker, combine the lemon juice, vodka, simple syrup, and triple sec.

Add ice to the shaker, filling it about halfway.

Secure the lid and shake vigorously for about 15 seconds.

Using a strainer, pour the cocktail into the prepared glasses.

Garnish each drink with a lemon slice on the rim.