Before filling the glass with ice, moisten the rim with a little lime juice and dip it in a dish with 2 teaspoons kosher salt.
Shake 1 ounce freshly squeezed lime juice, 2 ounces tequila, 3/4 ounce agave nectar, and 3/4 ounce cold water vigorously in a cocktail shaker with ice and strain into a chilled rocks glass or coupe filled with ice. Garnish with 1 lime wheel.
