
Rub the pickle spear along half of the rim of your glass.
Add the Tajín to a small plate and dip the moistened edge of the glass into the Tajín to coat.
Fill the glass with ice and place the pickle spear inside.
Fill a cocktail shaker with ice, then add the tequila, pickle juice, triple sec, lime juice, and simple syrup.
Cover and shake until the drink is well chilled.
Strain the margarita into your prepared glass.