2 oz. Mazza Chautauqua Grappa
2 oz. Grapefruit Pellegrino
1 grapefruit wedge
2 oz. fresh grapefruit juice
1 tbl. fresh lime juice
1 tsp. sugar
Pour some kosher salt on a plate.
Rub half of rim of a highball or rocks 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 grappa, add ice, and top off with grapefruit Pellegrino.
Garnish with grapefruit wedge.