Made of freshly squeezed grapefruit juice and tequila, the Classic Paloma cocktail is the national drink of Mexico. It's light, bright, and totally refreshing.
Sprinkle kosher salt on a small plate. Rub half the rim of a highball glass with one of the leftover (juiced) grapefruit wedges. Dip rim in salt, rotating to ensure rim is evenly coated.
Add grapefruit juice, lime juice and sugar to the glass. Stir to combine. Add tequila and ice. Again, stir to combine. Top with club soda. Garnish with a grapefruit wedge, if desired, and serve immediately.
1 grapefruit should yield at least 1/2 of juice.