Kosher salt (for serving)
1/2 thick lime wheel (for serving)
2 oz. tequila blanco
3/4 oz. fresh lime juice
3/4 oz. simple syrup
Place some salt on a small plate. Rub rim of an old-fashioned or rocks glass with lime (reserve for serving); dip in salt. Fill with ice and set aside.
Combine tequila, lime juice, and simple syrup in a cocktail shaker. Fill shaker with ice, cover, and shake vigorously until outside of shaker is very cold, about 20 seconds.
Strain cocktail through a Hawthorne strainer or a slotted spoon into reserved glass. Garnish with lime wheel.
From Bon Appetit