Salty Dog Cocktail

¼ teaspoon salt

1 ½ fluid ounces vodka

5 fluid ounces grapefruit juice

1 cup ice

Sprinkle salt on a small plate or in a shallow bowl. Lightly wet the rim of a highball glass with a moistened paper towel. Dip the rim in salt to coat. Pour vodka and grapefruit juice into the prepared glass. Add ice and stir to combine.