2 parts vodka
3 wedges peeled and seeded grapefruit
1/2 teaspoon sugar
1 part triple sec
turbinado sugar for rimming the glass
Rub the grapefruit around the outside edge of the glass and then roll in the turbinado sugar. Place the sugar and grapefruit in the bottom of a shaker, muddle thoroughly. Add vodka, triple sec and ice. Shake well. Pour drink including ice and grapefruit into a rimmed rocks glass
