MAKES 1 SERVINGS

Kosher salt

1 grapefruit wedge

¼ cup fresh grapefruit juice

1 tablespoon fresh lime juice

1 teaspoon sugar

¼ cup mescal or tequila

¼ cup club soda

Pour some kosher salt on a plate. Rub half of rim of a highball glass with grapefruit wedge; dip rim of glass in salt. Combine grapefruit juice, lime juice, and sugar in glass; stir until sugar is dissolved. Stir in mescal, add ice, and top off with club soda. Garnish with grapefruit wedge.