2 tablespoons orange liqueur, such as Cointreau or Grand Marnier
1 teaspoon finely grated fresh ginger
A few slices candied ginger for serving, optional
Finely grate 1 teaspoon of zest from one lime and place it on a small plate. Add salt and rub the two together with your fingers to incorporate. Cut a wedge out of the lime and rub it around the rim of two cocktail glasses. Dip the rims in the salt mixture and set aside.
Squeeze the juice from the other lime into a cocktail shaker filled with ice. Add cranberry juice, tequila, orange liqueur, and grated ginger.
Cover and shake vigorously until sweat starts to bead on the outside of the shaker. Divide the drink evenly between the two prepared glasses and garnish with a lime wedge and a few strips of candied ginger.