Run a lime wedge around the rim of your margarita glasses
Then, place kosher salt on a small plate a little larger than the diameter of your margarita glass.
Dip the margarita glass in the salt, rolling it until the lime juice catches the salt.
Put a few ice cubes in each glass and set aside.
Add sliced cucumber and jalapeño to a cocktail shaker. Muddle the cucumber and jalapeño until well mashed and juices are released.
Fill your cocktail shaker up with ice. Then, add tequila, cointreau, lime juice, and agave to your cocktail shaker.
Shake vigorously for 10-15 seconds and pour into salt-rimmed glasses.
Garnish with additional sliced cucumber and jalapeño. It's recommend to remove the seeds from the jalapeño for serving so the cocktail isn't too spicy.