Rub a lime wedge around the rims of two glasses and dip them into salt. Set aside.

In a shaker, add the tequila, lime juice, orange liqueur, agave syrup, and jalapeño slices.

Fill the shaker with ice and shake well for about 20 seconds to infuse the spice and chill the drink.

Strain the mixture into the prepared glasses filled with fresh ice.

Garnish with a lime wedge or a slice of jalapeño and serve immediately.