Ingredients

2 oz. reposado tequila

Juice from 1/2 a lime (save shell for garnish)

1 pinch salt

Grapefruit soda (Jarritos is preferred)

Large ice cubes or single long spear

Glass: highball

Garnish: squeezed-out lime shell

Preparation

Pour tequila and lime juice into glass and add ice, salt and garnish. Fill with grapefruit soda.